Electric Vehicles in Brompton, Oxfordshire, has a good selection of 2nd hand milk floats, and John, the owner is an expert in converting them. We ordered one for the Mobile Archive project in Egremont, currently running under the project name FOLK FLOAT.
We are big enthusiasts of milk floats at the moment, they're good value for money and no MOT required!
More about milkfloats? Visit www.milkfloats.org.uk