[flatsicks]

I'd make a list of what overrestored has suggested. All these changes take a few days, maybe.

As to not wanting to take off the tires and mounting them on the original rims or installing the correct carbs and air filters?

How much effort is an additional $50k in your selling price worth to you? If I had to put a value on 'current' and 'corrected' that would be about it.

And the engine that is currently installed is a C, not a S90, so the tach would have a redline from 5k-5500. The tach in the car is a S90, most likely from a Bt5 as A cars did not come with S90 engines.

Being a C engine, it would have had Zenith carbs, not Solexes, with mesh filters, not the 58-on cans (good luck sourcing those).

Was the original color also red or was it painted a different color way back when, as that would also have a negative effect on value. Resale Red was popular back in the 80s, not so much now. Ditto for a change of interior color (I bet $50 it used to have a black interior).

Currently the exterior colors nobody wanted in the 80s are top dollar (meissen blue, speedster blue, aquamarine, jade green, even togo brown is now somewhat sought after), same on early 911s. Lido gold was oh-so wrong 10-15 years ago, now everyone is drooling over it.

Nevertheless it is a very rare car - the long rear overrider bar was only offered for about 6 months, then they went to split bars. Great to see it is still there!!