You need to go look at the bike.
Meet the person and talk a little and get a feeling if the guy is honest or takes care of his things.
If his garage is a complete mess, the bike probably is too.
Just because you go look does not mean you have to buy it.
And what about the paperwork?
IF he says the papers are lost etc., Do not buy it.
You have all winter to work on it.
On a Roadstar Adventure.