You mean 5 hours away as in 5 hours to, and 5 hours back?
Time and distance both give it a HUGE negative, too much to go wrong. Expecting to get it for half the asking price is the deal killer. Even if the seller is willing to agree to sell it to you and only you, the chances of them going ahead and selling it to the first better offer they don't have to wait 5 hours for is just too great.