This is what I'm thinking about for thresholds and classes, and what comic book artists I'd associate with each class (you don't have to look like that but you get 5% bonus XP if you do; that's right, I'm decoupling bonus XP too):
1 Halflings are a consolation class where each ability score 6 and lower unlocks bonus abilities, I will update this when I finish that article. They come from Vaughn Bode and Jeff Smith.
2 Thieves work weird now also working on that. They are from Mike Mignola.
3 Fighters work like LotFP and can make death saves to not die at 0HP like everyone else does. John Buscema.
4 Priests work like Prophets and follow Magic-User rules for armor and weapons. They all have strange faiths and new gods. Charles Vess.
5 Dwarfs are much the same but instead of deep dwellers they're just nocturnal. Mark Buckingham.
6 Magic-User work like Wonder & Wickedness/VAM! and they all look like the came from a Doom Patrol comic except for the ones John Byrne made.
7 Clerics are straight about healing and turning undead but get the good armor and weapons. They serve The Church, whatever church that is. Brian Bolland or Kevin O'Neill.
8 Witches work like Fuck Druids and Emily Carroll draws them
9 Elfs all work like BX Halflings. Wendy Pini, or maybe Jill Thompson, or Moebius.
10 Druids, Paladins, Monks, Rangers, Assassins, or any other AD&D style class that we just kitbash until it fits. Yoshitaka Amano, which I think is cheating.