1972 413 Engine Complete

I have a 72 413 (casting date 8-29-72), engine for sale. It is a motorhome engine with the weird angle plug heads but only has 39,000 miles on it. It is clean and has a new performance cam in it. Includes everything from intake to pan. UPDATE! IT IS A 413. Just did more research and it's a 413. Open to all offers at this point. How is $400? Sorry for the wrong info earlier. Thanks to all the FABO folks who fianlly helped me get this figured out. Still a great builder engine. Thanks.