Yes,i think that probably is about right if it was freshly cambelted/serviced and the tailgate repaired.I`ve got a 57 plate combo,1.3cdti ,24000 miles,superb van but can`t carry the weight i want to go to.Vanity says i stretch myself for 08 next,nice and shiny,low miles,maybe new shape scudo/expert/dispatch or the partner/berlingo 850kg(payload still probably a compromise).
Common sense says older van with 1 ton plus payload,regardless of mileage as long as really well maintained and presentable as in my case i don`t do many miles at all and the van would serve no purpose other than being a glorified water bowser.
Actually no windows and a bulkhead would be a priority so people can`t see me pi**ing.