Hi
IMO don't waste your money. Buy a conventional van. Ask Citroen about their Battery driven Berlingo's. Replacement batteries cost a fortune and their resale value is nothing. They don't even sell them anymore - a total disaster.
You still had a small fuel tank to supply the heater to keep the cab warm. If you forgot to put fuel in the tank it cost a fortune to bleed to fuel line to the fuel heater and clear the safety lock on Lexus - PSA's computer workshop system.
Look at the resale prices of a 3 year old Hybrid Honda car. Now compare it with diesel. We have a customer that manages 50mpg with his 1400 petrol Hybrid. The diesels do that anyway. The diesel and the hybrid cost about the same new, but resale value kills the deal for the Hybrid.
No matter how much Government support is for the electric car, it will die in a few years.
Spruce.
Some things never change 
I love it.
It's amazing how things change with time.
Those first battery driven Berlingos were a total waste of money and very quickly disappeared from the market. They used lead acid batteries and had a 1 gallon diesel tank and a Webasto thermo top for heating. Nobody filled the diesel tank so none of the vans had a working heater and windscreen demister.
Citroen came out with the idea that you bought the van but rented the batteries. That concept just didn't go down well with customers.
I'm not even sure lithium was around then.
Back then we only had the old milk carts to compare with. They were alright when then carts were new, but the packs of batteries soon became a charging nightmare back at the depot.