70’ Duster 340 4 speed value

hey guys, new to the Abodies. Mainly deal in Bbodies. Looking to purchase a 1970 duster. Found a very nice , I’d consider it a strong #2 car if not better. It’s #s matching 340 / 4 speed. Motor has cam headers exhaust intake ect. Interior is all new. Restoration is very nice. B7 blue , black stripes. Car is turn key ready to go. Wondering what the value really is? 70-72 Dusters seem to be all over the place in the market. Any info would be great. Thanks!