AT&T 3B2/400 items and spares

Hello everybody. I've received one AT&T 3B2/400 computer two weeks ago with some dumb terminals in perfect state of working, plus manuals and AT&T Unix 3.0 and 3.1. I should like to get in addition: * 5.25 720k floppy discs. * More packages and manuals than the basic distribution. Mostly programming items. * SCSI and NI (ethernet) boards for it (and other brother that shall arrive in some weeks). The NIA (Starlan) board would be interesting too but in a minor level. * Some kind of graphic terminal. I know it existed in some time for this machine ;-) * One interesting item would be one AT&T /XM expansion enclosure. * Other items than could be applied for this machine. Oh, and one soul that could provide me with the GCC compiler for the AT&T 3B2 (native or crosss-compiling enabled). I can't be capable to compile any of the GCC versions and put them operative for the 3B2 or doing cross-compiling. Thanks in advance Sergio