Thanks Ian. Im pleased with the way it came out. much better than what I originally planned. Like I said its still a little loud but with the right MOT tester it should pass (If, of course, I bother with am MOT. It is over 40 now so its not actually necessary). I think the exhaust is actually quieter than the Vette, its the engine bay where most of the noise comes from now.
As for the shocks, this is the best picture I can find of the upper mount which is on the outside of the frame.
I seem to remember its different on later models like yours but I cant quite remember how.