Thankyou for your interest in my mod!
I have also released a new standalone DLC with custom armor here: https://rd.nexusmods.com/witcher3/mods/2818/

DESCRIPTION
There are two ways to use this mod. One is integrated into the base game, the other is a tailored gaming experience.
It is intended to be played using "Version 2", however "Version 1" is the base of the mod, and applies to a wider audience.
The items have been carefully balanced to ensure that they align with vanilla values, allowing overhaul mods to take control as intended.

You can obtain the items in a natural manner, with stats that scale to your level and continue scaling with you as you level up.
(See "V1 - Immersive-Friendly" below)

Alternatively, these items can be used from lvl 1-100 scaling to the players current level and continue scaling with you as you level up. 
(See "V2 - Sumajin Experience" below)

The Items are intended to be used as a set.                        (Using the pieces separately may make you overpowered)
The Armor Value increases by 12 every level.                      (Controlled by Chest, other pieces do not increase)
The Resistance Values increase by 4.2 every 5 levels.        (Skips level 5)
The Boots/Gloves/Pants have flat stats.                               (They will not change apart from their required level matching your current level)
The Crossbows don't scale.                                                     (They just don't)
The Horse gear is just cool stuff.                                            (Purchasable from Yoanna at all times) 

IMPORTANT INFORMATION
Both GrandMaster Bonus' only require 1 piece to activate; keep this in mind if you intend on mixing GrandMaster set.
The NG+ part of the mod is not functioning as intended. I have made the armor and horse gear unavailable.
Please consider this mod as only functioning for a standard game until the next version (v1.2 pending community feedback)

SUMMARY OF CHANGES
Witch Hunters Armor                      (Removed)
Vesemir Crossbow                          (Replaced)
Death from Above Crossbow         (Replaced)
Aerondight                                        (Tweaked)
Iris                                                      (Tweaked)

+New  Gwynbleidd Armor                                           
+New  Gwynbleidd Gloves                                        
+New  Gwynbleidd Boots                                            
+New  Gwynbleidd Pants                                             
+New  Iris & Scabbard                                                 
+New  Aerondight Scabbard                                                     
+New  Armored Zerrikanian Blinders                          
+New  Royal Ofieri Cavalry Saddle                            
+New  Witcher's Expedition Saddlebags                    
+New  Howling Vengeance (Crossbow LVL 1)         
+New  Howling Vengeance (Crossbow LVL 30)       
+New  Knife for Trophy Cutscene                                
+New  Campfire for Meditation Mods                        

V1 - Immersive-Friendly
Simply install the mod and the game will take care of the rest. No console commands required. No additional Instructions.

Quest Rewards;
Crossbow LVL 1                     Vesemir                      (During  Gryphon  Questline)
Crossbow LVL 30              Crach an Craite              (Finish Quest: Kings Gambit)
Horse Items                         Bloody Baron               (Finish Character Questline)
Armor                                       Yoanna                      (Finish Character Questline)
Iris                                             Olgierd                      (Finish Character Questline)
Aerondight                       Lady of the Lake              (Finish Character Questline)

V2 - Sumajin Experience
Have you had the experience with The Witcher 3 that the early game can present a challenge, but as you progress, your'e a hot blade through butter?
This mod attempts to adjust this difficulty curve, based on the skill of the player, using a custom set of items.

At the start you will DEAL more damage     (I can't change the damage on the swords without further scripting and I'm trying to limit that)
At the start you will TAKE more damage     (To counteract the increase in damage dealt to enemies)
Your aim is to charge your swords.              (This will not happen as often as you would like)
Your aim is to avoid damage.                        (Quen is now your saving grace, rather than an OP shield)

(Using the "Aerondight Special Ability", the swords are able to scale with the players level, based on their ability to kill enemies with a charged sword)
(You can override this at any time by using the *additem('ITEMNAME')* command in the console. You will then receive a level-scaled version of the item)

After your conversation with Vesemir and fighting the ghouls use the below console commands. 
This lets you get a feel of the difference between your starting armor and this new armor.

additem('Hemdall Legacy Armor')
additem('Hemdall Legacy Pants')
additem('Hemdall Legacy Boots')
additem('Hemdall Legacy Gloves')
additem('Aerondight EP2')
additem('Olgierd Sabre')
additem('DragonHunter HorseBag')
additem('Nilfgaardian Superior HorseBlinders')
additem('Nilfgaardian Superior HorseSaddle')

INSTALLATION
Download the first main file in the FILES section (0_DLC) here:
https://www.nexusmods.com/witcher3/mods/2650
Download the first main file in the FILES section of this Mod (Gwynbleidd v1.12)
Extract the files wherever you want.
Put DLCHem in the DLC Folder.
Put modGwynbleidd in the Mods Folder.

Good luck on your path! 

SUGGESTED COMPANION MODS
Aerondight Redone
https://www.nexusmods.com/witcher3/mods/1607
Enemies of Rivia
https://www.nexusmods.com/witcher3/mods/2655
Friendly Meditation
https://www.nexusmods.com/witcher3/mods/2067
(Controller) W3Redux Realtime Gamepad Controls
https://www.nexusmods.com/witcher3/mods/2116

The 3dModels/Meshes are not my property. They are being used with permission from another author.
This mod would not be possible without the amazing modding skills of Sampande, shown in his mod 'Witcher's 10th Anniversary Celebration Project'.
https://www.nexusmods.com/witcher3/mods/2650/ See Here for Campfire Replacement Scripts for Meditation Mods.