There is one on Gunbroker right now with a starting bid of 655, no reserve and a buy now price of 800......I think it will go for a little more than the 655.
I bought a LNIB 7-1/2 incher on this forum for 600 last summer and figured I got a good buy.
I would not sell it because it makes a good conversation starter. I like to lay out a SP 101, a Security 6, a GP100 and the Redhawk, just to illustrate the different sizes of .357s available.