With so few appearing in the classifieds it is hard to gauge the market for this fairly rare car. I know it's fairly vague,but how much would one go for in "nice" condition.
It'll go for whatever someone is willing to pay at the time you're trying to sell which may or may not be the same that someone was willing to pay at some other time.
There was a rough one up for sale recently, in the U.K., for about £30,000 but I can't recall who was selling. And there was another on the continent that went for something like twice that or maybe slightly more...