[northworthy]

If I was bidding (which I am not for two reasons a) I have an ST4s b) I'd never buy a bike off ScumBay) I would do the following:

1: Ask the Seller to supply more pictures of 360° views of the bike and at a closer distance so that you could view it in more detail.
2: If that process confirmed a "clean" looking bike I'd go and visit the bike with a knowledgeable ST person to give it the once over and a test ride.
3: Should all be in order I'd then enter the bidding process.

Been burnt too often on ScumBay to do otherwise - especially when there's thousands of pounds involved.