Ooh, was about to offer some stuff to check and saw the second post. Sorry mate.
F series and even the p or more rarely, the c series show up on eBay.even an e showed up once.
The f is the entry, the p is the deluxe geared, and the c is the back of a p stuck to the front of an f, and the e is an electronic p with an attached computer.
A C2 (well, what I got mine for) sells for about $600.
A P2 can hit a grand, and an F2 generally is the cheapest. The E2 is failed to sell at around $6000, but that may be because of the old tower computer required to operate it, and the very high cost of any parts for it (easily double the cost of P2 parts when it was new, and they still make P2 parts.)
1 series of any of those are bright metal instead of black, and the knobs are different.
Good luck though, sinar makes really nice cameras.