I guess I should have put more emphasis on the "easy to use" necessity of this rig. He has a computer in his office (above the SBD, in the old projector room) that will be on during the shows, so I'm thinking of setting up simple software based approach:
SBD (maybe + mics.)> TBD > PC.
If there is a mic or two, I don't want him to have to even set levels. I just want to be able to say to him "open this program, double click here, click record, come back after the show and save, shut down."
Sound quality doesn't have to be stellar, but has to be decent enough to listen to.