I am looking into a 92 HB DX auto, mainly for it's body condition and maintenence record. But it's auto , when i swap in the motor of my choice I am swapping a b18b/b16c5, hydro trans, axels, harness, and ecu... ontop of that i am adding a shortshifter... what else would I have to do? would it alter my swap to be on an auto chassis? eg. diff mounts?