I think you'll find "hunts", that all manufacturers/suppliers will have a choice of purchasing and leasing packages for virtually all of their capital equipment, even portables.
John Gott, MD at Hydramaster is able to source a wide range of vans at unbelievably low prices. That's why his starter package for a Fiat Ducato van, Boxxer 318 with reel, ramp etc had a package price in the region of £19k at the HM Dirty Weekend/Open day last August. That's a great place to start for both value and spec.
It has been suggested to me by others that he lets the vans go at cost as a vehicle to sell his T/M's. I'd believe that having met John.
Safe and happy cleaning
Ken
PS Even if you don't buy a Hydramaster, treat the family to a long weekend in sunny Cornwall when he runs his next Dirty Weekend. It's for ALL the family, Pig Roast, bar, live band entertainment and great, great company. In fact, I'd say it was our industry's number one event of the year. John also sources CHEAP accomodation. This year it was £10 per night per room. And it's tax deductible!