Hi BMG, I'm new to S_mines and if you know the owner of this one, then you know why I asked. For anyone else reading this the price requested is 75.00. The seller said he would sell it to me at this price but told me that they were actually illegal so he would send it but would not be responsible for it So I have to make my mind up to take the chance. There is a chap who asked me for dimensions as he has the same problem as your self ,sizes. He can actually machine the parts. I also sent a PM to another member asking if he could help with measurements but soon after I received an e-mail from the guy
with his offer. So I am at dead end, not sure what to do or even proceed with anything.