2 barrel to 4 barrel

What mopar od would fit into a A body without doing sheet metal work
any sheet metal work? zero-point-zero. none. zilch. nada.
very minimal cutting for the 4spd hump? A-833OD
granted a T5 would be "minimal-ish" but it's not mopar, and neither of those rate because Matey Dan has a peg leg and can't drive stick.

after that it's 3" spinning wheel of death, sawzall and BFH time. oh and a welder. you'll need one of those too.