Thanks Leaf - I'm going to go look at it this weekend, but I'm starting to doubt if I'll pick it up. I've been scouring the 'net for GS550 resources and they seem to be fairly slim. Parts seem to be a problem unless I want to by complete bikes for parts, etc. For the price, I think it's probably worth the money for the sidecar alone - so who knows?
The problem I have is that, after I spend my bike allowance money, I'm not really going to be able to do too much. So if I buy this and it doesn't pan out, I've basically got a grage full of parts. Kicking around the idea of putting the sidecar on something else, but again, I won't much money left over to buy another bike.
I'll post updates when I find out more. If not, I promised the guy I would help him sell it - it's all good