Decent Deal? Anything stick out that should cause me to not make the trek?
Maybe showing up with a trailer shows you could be a serious buyer and could motivate a seller to work with you instead of thinking your a looky-loo. Why risk losing your trailer by leaving it somewhere you are unfamiliar with. IMO, I've show up to look at cars with my trailer and then left empty. Other times I've loaded it and went home with a new set of wheels.
Four hour drive isn't awful. Yea, its not a trip to the corner store, but like others said, make a day trip of it with a friend.
What I find interesting is that this is an "older" guy tat can't be bothered to take additional pictures, yet it has a finished trunk compartment with some premium stereo equipment in it. I enjoy my tunes as much as the next guy, maybe more sometimes, and I've had some powerful car stereos, but I never took an install to the degree shown here.