'79 440 Motorhome short block - Should I buy it?

The way I see it, if the Crafstman truck series engines can make over 700 HP on a 9.0-1 engine, theres no reason, except your budget, that you can not make good power with that 9.0-1 ratio 440.
Ok ok ok, so the truck engines have a zillion dollor budget and W-7-8-9 10 what ever heads with custom porting and big rollers, but I think you get the point.