[Rick 427 Cobra]

I think Alan's comments on the bodies refers to the amount of work required to bring an "as delivered" body up to a smooth paintable condition. I love the Kirkhams cars and very nearly bought one. Their as delivered bodies are rough (file finish), plain and simple. Fiberglas is basically smooth. Can the K's be massaged? Absolutely. They can be mirror smooth, but every person I have met who polished their cars have said "Never again". LOTS of work.
The 7000 cars as well as the K's use 427 footboxes which are smaller than the 289s. On the plus side, this allows a 351 and up to be installed. The 7000 tunnel is bigger, but the "trellis" as Dave calls it is a real plus in chassis flex and handling.
The problem with the 8000 cars is not so much the wheel opening, but the way off spec front spring that cause the car to ride real high in front. Really spoils the look.