Most people that haul horses charge $0.50 - $1 a mile, so transporting could be very expensive. I would make sure before you buy the horse you go and see the horse in person and GET A VET CHECK! It may be more money now but you want to make sure that the horse doesnt have any underlying problems that will cost you a ton of money in the long run. You could pay for the horse with cashiers checks, cash, or regular checks. You may want to make an agreement that you will pay for the horse apon its arrival. You also should have some sort of contract that is signed to prevent disputes.