You have some very interesting ideas, I must say! I will give it some thinking and perhaps re-work my current idea all together.
I’ve actually glanced at the Trapper+ mod and taken some inspiration already; but I think I’ve gotten lost somewhere during step 2 and I would have to take a closer look based on Trapper+.
The only reason I wanted the Trapper to be a crafter is because I found it “the most logical way” that they are the ones to craft candles. Candles which would first require the Trapper to harvest animal fat and make tallow. (So 3 different “craftables” from one class)
But as you state, it might feel “pushed” into this class instead of just adding this tech-tree into another crafter.
Thank you, @nightlancer and @DaniAngione!