New member - New to Mopar!

Thanks for the warm welcome.
A quick run down of the car and, hopefully, its future.
415 Indy Cylinder heads crate engine (crank gone - # 3 Rod journal)
727 Auto - stall unknown
742 diff with 4:11 gear
Block and crank are currently sitting at machine shop for grinding / cleaning
I want to replace the rats nest of wiring under hood area
Interior needs to be refreshed.
I believe an original 6 cylinder car but obviously been upgraded with a lot of good parts!
I basically purchased the car in its current state from an estate like sale.