So, looking at it I *think* you only have to revert 001, and delete the other one. Pretty sure 001 is the map of Weirdwood, and the mod adds a blue glow marker there allowing you to access the gallery (the other json). Note that the most recent mod version uses 166 rather than 159, and v3.41 only goes up to 165. Maybe someone who's used it can comment?
As for the grindathon, Cheatmode was changed in v3.22. Instead of red chests you now find a body south of the spider caves entrance, it has a note and a key. The key opens the small building next to the guard tower. Inside are eight chests, one has cash and the others have potions; the chests refill daily. Some potion chests are empty until a certain quest is completed. There is also an item on a shelf which makes the MC nearly invincible in combat if it is equipped (it goes in the necklace slot). So not insta-wealthy and rolling in potions, but regular collections should give you all the cash and key potions you need.