If it’s been looked after and all the belts done when they’re meant to be, it should be good for well over 200k. It’s also a timing chain, so should be pretty solid – provided tensioners are still strong. I’d also say that if you can’t pin point when the water pump was last done, then get it done.
you’ll still have to tax it though – even if your mate has paid the VED in one go for the year – they’ll send him a refund and you’ll have to pay for a year or start a DD for it.
we had one that refused to die – even though it was rusted through in a bunch of places (tailgate and front wings are the norm from what I can see). Had a few electrical sensor type things fail over the years, but never anything crazy. best van to drive in my opinion.
Also – I think the crew van had a padded floor – nice if you’re sleeping in it!
But – the thing with any older vehicle, even if your engine is good, there’s everything else around it – cv boots and gaiters, drive shafts, suspension, brakes, etc. If they’ve not been replaced, they’re going to need to be soon. Easy to keep them running – just either time consuming or expensive if you’re not handy on the spanners (which defeats the object obviously!)