I personally have 2 parts grade C64s I could dump. At least one semi works(I forget). I could test if needed. It would be tempting for me to snag the SIDs first.. hmm.. You want the whole things with PSs?
I don't think I need any power supplies. I have a few extras. I DO need SIDs, though. Of my two mostly workable 64s, one has a damaged SID (missing a channel) and the other has the SID removed (I stole it for my Catweasel!). I've been meaning to cruise the local flea markets and cheap junk resale shops, but just haven't had the time...