Papa4,
Just turned down a used contender frame (bare, no wood) for $200, and grip and forend would add $20-$90 depending on wood/composite and new/used. New Encore frames with grip and forend go for around $250-$280 now, used barrels on e-bay and Auction Arms go between $100 and $150, and once in awhile almost $200. No scope or anything extra on the gun, I'd offer him $350, there's a couple on AA for $365 and $380 with no bids on them yet. $400 isn't bad, but it isn't real good either.
My 2 cents.
Helicopter Bill