I assume you are concerned about the mechanics involved in assuring you don't get stiffed and no car makes it out to you.

You could run it thru ebay somehow. Maybe pay with pay pal and have the ebay guarantee protection.
You could fly to FL and take possession and you hire the shipper.
You can rely on good faith of seller...and pray.

I don't know if there are any intermediaries that handle this type of thing, if that's what you are looking for.

I bought 3 on ebay.
The first one I flew to FL, inspected and auto-trained home.
The second one I was stiffed on and notified FBI.(out 3k)
The third was prepaid and shipped and delivered as promised and I was entirely satisfied with the car.

caveat emptor.

edit:

Just because the seller is a forum member, doesn't make him any more honest. Shoot, we even have lawyers here.
I wouldn't trust him any more or less than any other invisible person.