can they give me an idea if the bike is a sound buy?
Like any second hand bike, do you think it is is a sound buy? If yes, buy it. If you have any doubts, don't; another will come along, that's for sure.
The bike in question is now five years old. How many hands has it been through since first registered?
If you had asked about a yellow 04 London reg vanilla 1200 it might have been mine. That was a sound buy when I sold it two years later to a friend in 2006 (with 22,000 on the clock) but it lost its rear drive fairly quickly thereafter.
He has since sold it on (to whom I have no idea and even less interest) so God only knows how 'sound a buy' it would be now.
As to the sticker? I have one from Motomania in Holland, but I have never been there.
As to the 'Where has it gone to / come from?' section? If you think it's a good idea, why not start a thread on it? If you build it, they will come.............. There are two punters (three including you) already, so it's off to a flying start.