Slippage is when the hair falls out. Mostly caused by bacteria and heat, butthere is chemical slippage.Cost depends on how you send it and how you want it tanned. If you want a soft rug type versus being able to mount. I really don't recommend trying to do a coyote for a novice, but if you go to
www.taxidermy.net and go to the search button and type in tanning a coyote or something similar. Good luck. If you find after reading, that it's too big a project, call a local taxidermist.