I've got dibbs on the Marantz. A similarly priced Yammy RX-V475 I just bought here has pass thru but it's full size so you might be interested in hunting down a 1504 as it has preamp outs for L&R Mains and is newer so the chance of it having pass thru is better. I'm okay with 50 wpc so the 1501 is sort of perfect for my use.
LOL, had the caveat in there that if nobody else was buying and it had what I needed, I would take it. Looks like only newer models have the passthru though, but the cheapest is like $400 for a refurb and was looking for something less than that. I have a spare amp and my son in law has my old preamp, I might go that route, since it is just a stereo setup and that pre has passthru.