There's a copy of the manual at: http://www.biggerhammer.net/manuals/ The username and password are at the top of the page. I didn't see an exploded diagram but it sill might help some.
Besides the various assembly/disassembly manuals, I used to keep a copy of Gun Parts Corp and Jack First's catalogs handy when I was doing general gunsmithing. These have exploded diagrams for all sorts of guns that you'll probably never find anywhere else.
If you can't find one, send me an email and I'll see if I can dig one up for you.