As part of a paleo lifestyle, I want to explore leather and fur clothing and footware, but I want to make sure they're sourced from humane, and preferably local, sources. I was thinking for my first project I would get leather and make my own toe boots, but even just finding some pre-made fur lined moccasin would be great. Has anyone found good sources of leather/fur or leather/fur products?
You could try your local vintage store. You aren't supporting inhumane farms if the animal was killed in the 50s and it's a great testament to just how long this stuff lasts. Another option is to get to know a hunter (many don't know what to do with the skins) or get a hunting license and then take a tanning class or pay the local game processer to tan the hides for you.
My favorite local bison ranch sells the skins. See them online here: https://www.fullcirclebisonranch.com/
It looks like they sell robes and rugs, but maybe you could talk to them about something you're looking for specifically.