There are so many factors to consider, not only on the van, but also, what you want it for.
Those H4 headlights might be good enough for somebody who uses the van as a camper and rarely drives it at night, for many of us they'd need upgrading. The mileage is on the high side but again, if you're only going to use it for weekends away that might not be a worry. On a van like that, particularly with no rear window, parking sensors (or a camera) are important, not a luxury.
It's due a cambelt / water pump / aux belt change soon if it hasn't had it done already, budget for around £500 for that.
If it's a five speed manual gearbox box and a bog standard steering wheel without the various controls on it, these all make the van less desirable in some people's eyes and therefore lower in value.
Personally I quite like AA Yellow, but if you plan to keep it for only a couple of years you should factor in that it might not hold its value quite as good as some other colours.
I'd shop around a bit more before doing a deal, it's just too much money for what it is in my humble opinion.