honestly I think anything that resembles a 760 is going for around 1500 on GB these days. The guns are more valuable when broken down into parts. I recently watched a mint Mk760 sell for around 5k broken down into separate high priced parts lots on GB. A lot of the SW 760s are painted black vs the classic parkerized finish of the smith Wesson and the MK arms.. which of course makes certain parts less compatible unless they are refinished.. otherwise it should all be interchangeable for the most part, some pieces might need minor fitting.