help finding the correct neutral safety switch

I'm pretty sure that holley power valve gaskets are the same diameter , I haven't been back over to Inertia's place to verify it yet but they are the same fibre material as the ones we put in my car , so far no leaks by the way . You might check with DusterGlenn but I'm pretty sure the short one is no longer available from Standard .

P.S. I don't mind you letting people know I have you helping me with my car , heck your a very knowledgeable old school mechanic and I'm lucky to have access to your wealth of info when it comes to actually fixing things instead of throwing parts at problems -cheers eh !