Buying a 360 shortblock?

I do have alum 4 barrel, mt valve covers and few other spare parts to put it together. Motor comes with box of parts. Front cover, oil pump, timing chain. Think goin to offer 200 and if he takes it pull it down and go over it. Make a decent spare if any of my 340s let go
If he doesn't take the $200, I'll buy for $250!!!!!