Too many detectives here - buy the bike.
I did; it was delivered on Monday.
As I expected? No; better. ABS, two brand new premium tyres, high-quality aftermarket rear shock, heated hand grips, and a Power Commander (plug-in generic tuning chip). I haven't ridden the bike yet, but it's obviously been looked after, and in view of the rear shock I'm hoping there are aftermarket Progressive springs in the front forks, because these early ones were noted for front end dive on braking, to the extent that a road test I read christened it the Greg Louganis bike...
Only one problem, but not for me; when the van arrived, the alternator warning light was on. I loaned him a multimeter, and sho 'nuff, the alternator wasn't delivering anything, and the battery voltage was down to 11.75 with the engine running. He left here at 13:45, and by dint of keeping the engine running for eight hours, it got him back (including two stops to pick up other bikes), about 230 miles in all, without breaking down. Big (and good) battery in it, obviously, but the headlights must have been glow-worms by the end...
It wouldn't turn over the next morning; no suprise there. All's well that ends well, though.