Certainly sounds genuine, as said above belts and a good service will give you some peace of mind. Used bikes is always a risk but there are plenty of people in this club always happy to help out...at a small price..
I'd start by getting the belts done (as recommended above) Cornerspeed are always a great place for this. Then check the service history with the dealers listed in the service book.
Frame repaints and rebuilds can worry a bit - get an HPI check done before you collect and be sure its a straight bike.
If she's not as listed in ebay and you're concerned, walk away.
If it all adds up, then you've got yourself a bargain I reckon.