I am a little confused...Are you wanting to be completely original? IMO, the 5mph bumpers with the shocks were butt ugly, tucking it into the car would help a lot, once again, just my opinion. How many holes were for the rubber strip and would it be possible to fill those holes with some chrome bolts? I see by a little searching some are converting to the 72 bumpers. Also, on a Nova site, dated yesterday, some guy has some for you for 50 bucks.