I would like to add, that philosophically, I prefer "originality." Not everyone does. I want an "original" experience, warts and all.
Thats why I went with the Kirkham, and thats why I chose SPF over any of the other easily attainable US GTs. ERA has a sparkling reputation, but is hardly original. CAV is even more "original," but not as much as the SPF. Frankly, a Ford GT would be the easiest to live with, but the least original by far. It's just a matter of taste.
I would look at the links that Rodknock provided, some good info there.
Not to swipe at the RCR GT, I just know the least about them. I considered amputating 6 inches off of my legs so that I could fit into the tube-framed 917K. Fran, if you do an ACCURATE 956/962 replica, I will sell all of my cars and buy one.
