Base gold of about 90 - 100 per day (This includes very small skill bonusses, base can go down to about 50)
Bonus for owning the Salty Muffin (Ebonheart home)
Bonus for having the Salty Muffin docked at Fort Bigbuck
Bonus for each kill made with Goldweave per day
Bonuses for skill levels: Alchemy, Illusion, Sneak, Marksman, Blade, Armorer, Speechcraft, Mercantile
Bonus for each of the 3 employees that you can hire
Bonus for number of homes owned (Including those from other mods and cyrodiil)

Most of the bonusses are modified by a random value, so profit will vary dayto day, but my goal was to have it top out around ~1K per day with
maxed upgrades, all bonusses applied, great skills, lots of homes and a healthy bloodlust. The real max range is probobly 800 - 1200 with perfect RNG. On average if you do all the quests and have some homes andskills, expect about 500 - 600ish.

1.) Start the quest by speaking to Carnius Magius in Fort Frostmoth, or speak to the Useful Homes Manager NPC
2.) Travel to the fort located on the southeastern part of the island (just
go east from Fort Frostmoth towards the coast corner area)
3.) Meet a new friend named Draxxdem Sklounst and talk to him in his tent
4.) Travel to Stormpfund Barrow to retrieve a required quest item
5.) Wait 3 days after delivering the quest item to Draxxdem
6.) Speak to Draxxdem again in his new home, you will have the option to pay 7,500 gold or go on a quest.

---- At this point your fort will start to generate profit, though youll be missing out on basically all of the bonuses by stopping here, so it wontbe a lot (maybe 100 - 120 per day with lowish stats), a dock worker with a boat will occasionally show up during the morning, talk to them whenever you see them.... ----

7.) Go to the Ald-Ruhn Mages Guild and retrieve a required quest item (If you didnt pay the 7,500 gold)
7b.) Avoid consumption of the above quest item......(or not...)
8.) Deliver the quest item to Draxxdem

---- At this point you will now have full access to all rooms/towers etc. in the fort, all further quests are "optional" but highly recommended as
they will give you profit bonuses and other unique rewards -----

In your quarters you will find a sword named "Goldweave" (Gold textured umbra), this sword will add bonuses to your daily profit based on the
number of kills it has made that day.  - Insert bad joke about making a killing -

Draxxdem will now have the option to start a small questline to hire 3 "employees" to increase profit, each employee has their own quest, and upon successfully hiring them, you will be given their home to use as your own (they will live in the Fort) All employee quests can be completed 4 different ways, and you may hire them in any order (Dynamic quest stages, was pretty proud to figure that one out, just give it a few seconds after you hire an employee to update, you will be teleported and 2 different quests should update) the employees are:

Armorer - You will need to go speak to the armorer in his cabin, He will agree to work for you under one of these conditions: provide 100 repair hammers, be the master of the fighters guild, pay 7,500 gold, or have a combined Armorer and Blade level of at least 100. Provides barter services as well as the option to craft armor for you. Currently only Glass/Ebony are supported, and its only the shield for now. Requires scrap metal and raw glass or raw ebony. 

Fletcher - You will need to speak to the fletcher in his Cabin, he will agree to work for you under one of these conditions: Deliver 50 Iron Arrows 50 Chitin Arrows and 10 common soul gems (any charge level), be the Master Thief of the Thieves Guild, pay 5,000 gold, or have a combined Marksman and Sneak level of at least 100. Provides barter services as well as theoption to enchant arrows for you. Only supports Iron and Chitin arrows for now (stack size of 25). Can enchant arrows with either Fire, Frost, or Shock (3 points, better than nothing but not OP)

Herbalist - You will need to speak to her in her Ice Burrow, she will agree to work for you under one of these conditions: Provide her with a sample of Heartwood*, Be the Arch Mage, pay 5,000 gold, or have a combined Alchemyand Illusion skill of at least 100. *If you accept her quest for the heartwood, a cave containing "Momma Bear" will unlock (shes about as tough as 1.5 bears, dont attempt if youre a really low level), you may go to the cave and attempt to kill Momma Bear and collect the single peice of Heartwood in her inventory. She will begin to respawn (normal timer) after the quest is completed and will continue to have a single Heartwood. You dont actually need to kill the bear though, if you already have a heartwood you can present it to the herbalist without going to the cave. Will have the option to upgrade your alchemy equipment up to a maximum tier of master, items are upgraded 1 tier at a time.

This is currently where the quest ends, I have a lot more ideas (and things to improve) so I will definitely continue it at some
point in a future update.

At 500 kills Goldweave will have a bloody texture applied and will recievea chance to give bonus XP, at 1000 it will add flames and do fire damage. The sword also gains base damage and loses weight every upgrade.

I might be slightly downplaying how good the profits from Goldweave can be, total daily kills are multiplied by a random number between 2 and 5,even with half decent RNG, you can go clear out a bunch of rats/wolves etc and get a pretty healthy bonus to your daily profit, plus it adds your speechcraft skill to the total directly without dividing it (all other skill bonusses are divided).

Each of the 3 employees will have a one time dialogue option to train two of your skills up by 10 (will count towards overall level). The skills they train are the ones used for their respective quests.

Each employee will spawn a special reward in the General Quarters. In the room on the left (not bedroom) there is a bookshelf with a chest, the Armorer will spawn a spell tome on the top shelf that allows you to cast a multi summon spell(2 Dremora and 1 Dremora Lord). The Fletcher will spawn "L'Arc De Neige" (The Snow Bow) inside the chest, which is a snow textured Aurielsbow that ignores normal resistance and has increased stats. The herbalist will spawn another multi summon tome, it will be next to the chest and a lower level, so it should be easier for players to cast (2 Skeletons and 1 Skeleton Champion).

The dock worker has a 1/1000 chance to have the Unicorn topic (Due to the way the script works, this chance is calculated daily but will not really work if you continuously wait 24 hours, if you want to try and wait this out, start at 6AM and wait in 12 hour increments, give it a second or 2 between waits) As if that wasnt secret enough, theres another sub-secret, once you have the topic and start the quest, a book will be enabled at the top of the Fort lighthouse (Under the bench near the door) that once opened, will enable a quest marker that points to the unicorn, otherwise you have to find it on your own. Spawns next to Hrothmonds Barrow. Once Unicorn is ridden, you will get a spell that allows you to send it back to Fort Bigbuck.

Once you get all of the fort doors unlocked, a very small sack will appear at the top of the Fort lighthouse, just behind the 2 barrels near the door. Collect the skooma inside and it will trigger a tiny quest where you confront Draxxdem about it. Nothing special happens, no rewards, its just a dumb little easter egg. Drinkingthe Skomma before talking to Draxxdem will get you crunk AF cause the quest to fail.

Momma Bears cave will have a 5% chance to spawn "Poppa Bear" after the completion of the Herbalists quest, he will rip you to shreds if you arent prepared (though he does have 2 heartwood) so its best to avoid that cave once the quest is completed unless youre a pretty high level. (He has 700HP and increased damage compared to Mommas 450HP)