I'll have to keep my eye out for one I think, though the flea markets in England are dominated by flatcaps and trilby hats.

For the pelts I've always followed a guide that I found on Motherearth News with Salt and Alum (Aluminium Sulphate) the result is always amazing, never had any fur slip or any other issues with them, they come out immensely soft.

http://www.motherearthnews.com/diy/how-to-tan-a-rabbit-hide-zmaz83jfzraw...

I have yet to try brain tanning, that's something I'm going to look into when I have the time and space to experiment, first I need to relocate from where I live aha.