Great find!
Cudos to Blair for being a top bloke as always.
I was browing eBay UK last night and noticed a lot of US stuff which doesn't get listed on eBay AUS. Classic Arcades were selling a heap of backglasses as well as other UK people so maybe worth checking on there..
Thanks Marty, I keep an eye on US eBay from time to time but don't normally look at the UK. I'll check it out and hopefully a backglass pops up sometime.