I'm looking to get a Springfield EMP .40 as the Sig is not working out for me. Gun has less than 50 rds down the pipe and has 4 factory 7rd mags; 3 of which I bought new. Stainless two-tone slide, and has SigLite night sights on it. Got the original box and all too. What do you guys think this is worth? My guess is $850 for it all. Does that sound fair? I don't want to go to the shop tomorrow and not know what this all should be worth.