1970 ProwleRunner

[Pharcyderide]

Hey All,
I'm Henry, the newest MOPAR FREAK to become a member on this awesome forum/site. I am in the process of breathing new life in my 1970 Plymouth Roadrunner, currently just a shell in need of a paint strip and body work. Being a new home owner and trying to continue my education my project funds are at a minimum,all donations accepted, but I have compiled a ton of parts (suspension,wheels,interior,brakes) with the intent on 'mashing' 2 of Plymouth's best lookers into 1 hot package. Roadrunner sheet metal with a hint Prowler all over. Wheels, dash,& paint. My current dilemma is the drive train, do I keep and redo the matching numbers 383 big block and 727 transmission including EFI ignition, or find and pick up a chub inducing 6.1 hemi and auto stick combination......?
I really dig everything I have seen so far on this site, so any and all input would be appreciated!