RE: coyote pelts
Go to Huntingchat.net and ask Dasfish, he traps and sells a lot of pelts and knows of the auctions. Don't know if you can find a fur buyer in MA these days other than at auction.
Tan your own w/ Krwotan. I just started doing mine to keep last year. I can't see selling a coyote for $20, when you could sell a tanned fur for a lot more on auction sites like fleabay