I'd found a good overall resource, that also lists dealers (and websites) state by state. Learned a lot, and in browsing various dealers, I found my 4107.
I'll try to post it as a link, but don't know if it'll work directly. Good luck with the search.http://www.rv-busconversions.com/buslinks.html
Also, I'm impressed as heck with the knowledge and help from the folks right here - and even more impressed with the welcoming and inclusive attitude.
Arthur Gaudet Carrollton, TX