I finished the door locking pins over Christmas and they seem to work quite well now. As I said before I am changing the twin 1 .1/2" carbs for a single 1.3/4 SU whilst waiting for the carb and re-build kit to arrive I made a heat shield out of a couple of bits of ally.
I've also sent for a grinding bit too open the inlet manifold out to 1.3/4.
I had a small disaster I've lost the cap for the alloy rocker cover so I've reverted back to the tin one for now doh!