Barry has sold a shit load of machines.
Your never gunna be able to please everybody, and from what I can tell, our Pinball brothers over there in the US are very picky.
A couple of my machines had some backyard repairs but nothing to bad or dodgey.
If you're still not too sure, tell him you're a genuine buyer and ask him for more pics.
And yeah, you'll have to wait two months for it to arrive by sea.
Just remember, if it's a high end pin and it's going real cheap, there has to be a good reason. No one sells top quality pins dirt cheap.