[E Sully]

Tempermental? I have not accused you of doing wrong. I gave my opinion on this forum. I have a 1973.5 coupe for the past 24+ years and love it. My brother liked mine enough to buy a similar Targa. Nice, but noisy and more maintenance to keep it leak free, a bit more body flex. I believe coupes are worth a little more than Targa's, but some like the open air and flex more than I do.
For real value original paint is better, not a color change with 2 stage paint instead of original color single stage paint. Your top quality paint shop did a poor job with the Vin plate. I stated you did not try to hide this since you posted a picture of it. Out in my neck of the woods, DMV has to reattach it.
I said the it's a nice car, does look original and you did not seem to be hiding things. What is the car worth? Whatever someone is willing to pay for it. No maintenance records do not help. What are the compression and leak down numbers? Did the car originaly come with the options shown? Maybe, but you haven't shown proof it came with them from the factory. Where is the documentation from Porsche for the options? If you want top dollar you should be willing to get these.
It might cost you those prices to repair and replace those items, but it would cost more than your above prices to have a shop do the paint and replace those parts here.
To sum it up, it is worth more than a car with rust and non matching numbers, less than a car with original paint and documentation.
Sorry if this bothers you, it's not a personal attack on your character. It's the questions that come up when collectables are sold.