[Coley]

I've made a couple of major U.S vehicle purchases from Canada.
Given the suspicion levels that surround the distance when buying from 'afar', I've always got a bank (certified) money order and express couriered it to the seller.
It was just a few bucks but they always seemed to be more comfortable with it. We had to wait a few days while the bank got comfortable with it...which was no real skin off my nose.
Perhaps bring that method up with him....if he has the funds its easy to do. It will simply be deposited by you at your bank....they just hold it for a couple of days to clear.
He can send it guaranteed next day courier (Fed-ex, etc)....good investment in my books.

Good luck tho' either way.
Coley