Without the car in its original, unmolested condition, I don't see much intrinsic value. Would you want a '73 RS that was converted to look like a 964 and had a 3.0l US SC motor? Not likely. Too much work to make it "correct".
The value to an RS is its originality, in conjunction with its original exclusivity. If indeed only 123 cars like yours were produced than yes, it has a higher level of intrinsic value than a regular '76 911. Is it more valuable than a 1975 Turbo (also built in small numbers?) I don't know.
Wrong wheels, bad paint, incorrect motor (both case and displacement, injection etc) all hurt its value. DOT paperwork is likely a non issue when it comes to value (my euro SC had that). Body mileage isn't exceptionally low given the cars intrinsic value (my euro SC had 62,000 miles when purchased 7 years ago). Believe me, I am not saying that my old car is an equivalent of your car (even though its looks similar), just sharing some common traits of Euro cars in general.
Given the cars current condition, I would be suprised to see it "sell" for much more than low to mid 30's. Sorry. If it was completely original/unmolested it could be a car worth asking $100k or more I guess.
What would it cost to:
1) Bare metal restore and repaint?
2) Same with wheels
3) While your at it, a complete interior restoration/refreshening and
4) the biggie - the motor - how much does a correct 2.7MFI motor cost these days -$15k-20K from start to finish?
My guess is that these 4 items could easily cost $50k or more for top quality professional work.
Asking $$ doesn't always = selling $
What's it worth to you?
