THE PERSON ORIGINALLY WORKING ON THE RANDOMISER, CHIKAKOO, HAS COME BACK TO WORKING ON IT. THEIR WORK IS ON HERE: https://www.nexusmods.com/stardewvalley/mods/5311/ 
I MOST LIKELY WON'T BE CONTINUING TO WORK ON THIS IN THE NEAR FUTURE.

Fix for cTooshii's Stardew Valley Randomiser, to make it work with 1.5, alongside some additions to the randomiser of my own.

Depression is kicking my ass, to the point where I'm unable to currently continue working on this. I have uploaded the code onto github, and if anyone wants to pick this up, to continue fixing the randomiser, feel free to.
https://github.com/certifiableGrimalkin/stardew-valley-randomizer

Check https://www.nexusmods.com/stardewvalley/mods/5311/ for all the info.

Things that weren't there in the original, but are in this:

From 0.5.0, by dtomlinson-ga:

• NPC Preference Randomizer (credit to Vertigon)
• Reworked the NPC skin randomizer so that most NPCs can be randomized with each other - exceptions (perhaps we can address these in the future as well):
  • Dwarf and Krobus, as they're too small
  • Pam and Willy, as they have fishing animations
  • Henchman and Bouncer, as they don't have that many sprites
    
• Fixed the rain, animal skins, and NPC skin randomizer settings potentially affecting the RNG for other things
• Added animal skins and NPC skin randomizer settings to the spoiler log
  

GMCM support added.

From certifiableGrimalkin:
Option to show songs being replaced in HUD.
Option to not have Tapper have a chance to require tapper products in recipe.
Critter randomisation has been reworked. You can now add custom groups of critter sprites, any combination of critter may be randomised, and I added an option for every frame of a critter to be randomised to a different group of sprites. (Includes lots of gay frogs.)
Added all recipes and most items from the 1.5 Update to the recipe randomiser.