My very personal opinion: The 50mm Canon FD lens and the last Canon cam could maybe find a buyer, the rest is more or less 'case gone'. Unless you have sentiments about certain items, repair will be tricky to impossible due to age of the equipment and the extent of damage due to fungus, wear and tear.
My mother is an antique dealer and I have literally tons of stuff like this as she bird dogs for me. She buys it so dirt cheap it is almost funny. Sometimes she scores big time for me but very rarely lah. Most of the time it is just stuff like this which tends to run cheap. I can't tell you how many times my mother has doubled or tripled her initial investment from my rejects (turn 5 outlay into 15 - every lit bit counts). When I get a nice one I pay her for them...when I get stuff like the above I will usually keep stuff like the 24/2.8 SSC Canon lens you posted just because. Fast fifties are a bit different because there are a running ton of them out there as they tended to kit the old slr's with them. To keep one either I must not have said model and/or it must be very nice condition. I collect certain copies because I never know when I might need to dally with 4/3rds system and adapters some day lah.
Just googled that lens and learned something about wide angles I didn't know...
The Canon FTb can probably be restored to good working condition sans the light meter. It is a fully mechanical camera that doesn't need a battery to shoot, and it is supposed to be incredibly hardy. The battery compartment on the left of the camera is purely for the light meter. Get a zinc-air battery to check if the light meter works (http://www.ebay.com/itm/271294496825). Check if the shutter, mirror, timer, aperture stop-down lever, and film advance work. Here's a link to the manual: http://www.butkus.org/chinon/canon/canon_ftb/canon_ftb.htm.
If they work fine, clean it thoroughly and you should be able to sell it for 200-250 (or even more if you hold on to it long enough - it's a slice of history. Fingers crossed!)