Whats my Dart worth?

I would agree with the 45-50 range and would at least talk to Grundy. I have both mine with them and no complaints. I had talked with others and when the others got pics they wanted to add extra charges for the 499 cu in, wheels, custom interior among other things. When I called Grundy I told them everything the others wanted to charge extra for and asked if it was a problem with them and they said no. I told him I didn't want to waste his time or mine if it was. He told me that the way he looked at it was "If you haven't torn it up in 30 plus years since it was new you damn sure won't after investing this much money in it". They up coverage as needed, Joe