I know that it can be very hard to determine the value of something without seeing them and without all the info, but I will give what I have (I went to look at the car in June but walked away from it as I was not ready for that kind of project at the time).  I also dont want to buy the car solely on the thought that I will be able to sell the interior pieces that I dont want, but I have 2 racing seats sitting in my room collecting dust just waiting to go into a car. There are 3 front seats and the rear seat as well. The seats were dirty and I didnt get the best look at them but they were rough im sure. (I know its not much to go on but there was stuff on them and I cant recall any specific information)

Im just looking for a rough idea of what they could be worth. 

Final question. To anyone who has rode in the back of one of these cars, how is leg room and head room? If I get the car (if it is even still there) and depending on the type of build I do could determine the seat being removed or not, but my car has limited room for both the legs and head. My one tall friend was in the back and was probably and inch taller than the roof was.

Any information and input is appreciated
Cheers
Ben