Model52guy estimate is pretty good I think. I paid $1000 for a 6" with inserts and nothing else recently. There is a 8 3/4" with box on a popular forum listed for $1600 and change but no takers yet. I say with the extra cylinder and the forcing cone is good, $1,400 OTD is a steal.

btw, any other interesting guns from this lot and which LGS is it?
Thanks