I am looking to import a Delica L300 from Japan and am planning on doing most of the work myself whenever possible. How many miles is too many for buying one used sight unseen? I'm looking at one with 280k km thinking about how for any gas vehicle that would be too many to buy but I know the diesels will go 500k easy. I was planning on limiting myself to 200k but is that necessary? Any other components to look out for on a higher mileage van?