Attached to this article is a service/maintenance manual for the Apple Lisa I found online.
More documentation for the Lisa can be found here: http://www.1000bit.it/support/manuali/manuali.asp
Some information specific to computer club's machine (from disassembly on 10/17/09):
It was manufactured sometime in late 1984 or early 1985. It was most likely originally a Lisa 2/10 (Lisa 2 with an internal 10MB hard drive), but was refurbished and modified by Sun Remarketing at some point. A 20 MB hard drive and 800k floppy drive were installed. It probably has the video board modification that changes the aspect ration, and has revision 3A ROMs installed, meaning that it has been 'upgraded' to a Macintosh XL, and would not be able to boot the Lisa OS without at least replacing the ROMs with Revision H ones. The ROMs are standard 2764 EPROMs, and if someone feels like building an EPROM burner it may be possible to find a couple of extra 2764s and burn the correct ROM images into them (I think I have the ROM dumps somewhere)
Further notes: On 1/23/2010 we were able to boot our Lisa into MacWorks. We have purchased most if not all of the parts needed to reverse the Macintosh XL modification (2 new system ROMs and the weird video state/serial number ROM), and are still working on acquiring a keyboard, and a ProFile emulator.