[blau911]

Ballpark price based on what you stated would be $15-18k, assuming it is is rust free and decent. Wrong engine, tranny and color give it zero collectibility. But as a driver in a sunny year round climate, it would be a great weekend car.
Anyone who really likes yellow targas might pay a few grand more. Then there is Europe. Maybe the Porche starved germans will pay more with the strong Euro. Good luck.