It's the right vintage to be super reliable, and the interior looks nice.
I sold my 1982 high top with about the miles, but not nearly as nice of an interior for $8k, and that was what the guy offered me, I wasn't even trying to sell it. He was driving a sprinter roadtrek and said it couldn't make it across the country without requiring major repairs. He was a mechanic, and he told me he was specifically looking for a pre 1986 for the reliability factor.
I had under $2k in mine, but it was a passenger van when I bought it, then I converted it into a low tech camper van. He loved it. He loved the simplicity and how there was nothing to break down or go wrong. While the one you're looking at has a nicer looking interior, it also looks like with the exception of the solar stuff, that care was taken to have trouble free, low maintenance systems. That's a huge plus over factory campers in my humble opinion. The miles don't mean much, I've hit 400k on several of that vintage before they started requiring much of anything for repairs.