It would make a good OB conversion except for one thing - you can't get much in the way of spares. Picco pretty much only do 1/8th scale car engines these days. What vintage are the engines you have? Can you make crankshafts yet with Mr CNC?
I would sell the 2 Picco motors and invest my money into a Novarossi motor, you will be much happier with it. The cost of a Custom Crank and PTO is going to cost you as much as a Novarossi motor... TB