It's a tough one with the fur markets now a lot more people started tanning hides to keep or sell themselves, also depends on how much you have into the tanning, the small beaver probably cost you around 40-50 to tan? if you can sell them for more than $60-$100 right now I'd be surprised and the wolfs also depend on size color and quality, if its big and nice fur good tan they sell from $400-$800 but with a poor tan that would drastically kill your price... It all depends on what a buyer is willing to pay. Good luck