Thanks Dave, if I do get one I'll certainly give you a shout for advice.
I had a look on fleabay the other week, there was a couple, including one with a load of parts needing work, but it was down in the far South west, too far for a quick look and I've bought perhaps one too many bikes without seeing them in the flesh first. I'll keep my eyes open, there's no rush and knowing me I'll probably end up with a polar opposite to an RS, but one is on the shopping list.