Nice work man! Lot of good tips and good questions, I'm about to give it a shot meself
heres a link that may be helpful
http://www.japanesepaperplace.com/general/site-map.htm
this link might lead you in the right direction too...contact them
Shoji Paper
LILIN JAPANESE INTERIOR SHOJI TATAMI ROOM FACTORY - Detail & Price !
and just in case you'd like to burn some adequate incense while you create
Shoyeido Japanese Incense - Home Page