Mid seventies A body weight

the A/C system is about 3800 pounds IIRC.lol. IDK but it's heavy.
I think the PS system is ~135pounds
My TTI duals from the collectors is 70plus pounds, with those fat Dynomaxers.
The big back window in my 68 Barracuda is also pretty heavy. The fold-down rear seat was 70#; it's gone for good.
But on the bright side, the bumpers with brackets are ~35 each. And I fit 325/50-15s inside the factory rear tubs on a slightly lowered car. Try that on your lightweight Scampy.
Early Dusters/Demons/ even 111wb Darts are lightest but the powerbulge Duster hoods look pretty fine.
My 70Swinger 340 4-speed scaled 3330, trackside, with me in it @140....with helmet,lol, back in 1971. With P/S, P/B, and a bench no less! That leaves the car at 3190. Those crap helmets hardly weighed anything in 1970........ makes you wonder sometimes.