1976 413 good or bad

Hi,I'm really new to Mopars so this may be a dumb question.I just bought a 1972 Charger,it needs alot of work as it's missing the engine,tranny,most of the wiring,gas tank,brake calipers,interior and just lots of odd and end stuff.So I found a 1973 satellite,I think most of the odd and end stuff I can strip from the Satellite.Problem is I can't afford the 440 I had my eye on and still get the Satellite.But a guy has a 413 and tranny for sale he says are from a '76 motorhome.I could probably barely squeeze the 413 in the budget but I just need to know if it's worth it to have a 413.What kind of power could one put out compared to the 440?Are performance parts even avaliable for the 413?Thanks,any help would really be appreciated.
Author: gh32