Lee, I couldn't agree more. The stuff out there is mostly high priced rubbish.
I would wait a few months and see what the change of registration brings in Sept through to Nov. Ford seem to be running the Transit and the Custom side by side, as they haven't had any clearance sales to get rid of the old model. The Sept reg change was generally the motor industry's best time sales wise.
However, as this shortage of good used vans has been around for sometime, the March plate change didn't do much for the used market. There is plenty of good 1 year old 10k mileage vans at commercial dealers, but these tend to be more than us as the average window cleaner can afford.
Having been painted with the manufacturer's paint brush, I would never consider a van with 100k on the clock, and certainly wouldn't buy an AA or RAC van with 180k on the clock, no matter how well it was serviced and maintained. They got to be worn out at that mileage - if they weren't the RAC would still keep them.
I would never touch a red postoffice van either - they have all been abused by a multitude of drivers.
I still think the BT vans are good value for money, lower mileage and usually one dedicated driver who has responsibility of his van. The downside is that they are blue, although white ones are now finding there way into the system. Sadly, they also seem to be leasing their van now rather than buying them, so the leasing companies will be trying to retail them themselves rather than send them out to Auction.