Since I wrote moaning about Nitromors there has been a developement. We have a friend who owns an engineering factory and it turns out he has a sand blaster in his factory. I have been up there a few times to use his lathe and other bits and have never noticed the sand blast bay. He isn't 100% sure the frame will fit in it, but the forks certainly will. We are also pretty sure that should the frame be too big we will find a workaround somehow. He does overhaul and recondition some big machinery so fingers crossed. So that's what I will be doing tomorrow.