Hi Pete.
I have the same scope. One of my mates (inmykombi) is always talking about getting one and is currently looking for an 8". He is at the SPSP this weekend at Ilford but will no doubt be online on Sunday if you send him a PM.
He has had an add in the "trade/swap/wanted" section trying to swap a rather expensive Meile Oven for a scope. (He is a central coast Meile authorised service electrician).
Try him, it's worth a go (maybe i could get that beautiful focuser to replace the crappy one mine came with, the rack and pinion thing


)