What am I THIINGING!?!?

This is the horse I'm looking at now. He's 17+ hands and a 10 year old Swedish Warmblood.
Am I insane? Any insight would be great here.
Here's what I've got about him
- he is in California
- he's vetted clean
- I don't have a video yet
- he only knows basic flat work, no lateral movements
- hes got good feet and legs and is barefoot now
- hes got a roached back (the opposite of swayback), but I've been told the vet said it does not effect him.
- the "price is right"
- Hes out of an FEI stallion

assistance???