Tom Hamer, who has the helmet and goggle advertisement here on Stoxnet, has a van that might possibly be what you require.
If you want to discuss it with him, please call him on 07838 190567. Please do not withhold your number, as he does not take calls from unidentified numbers. He is available to answer any queries you may have.
Hope it helps. Regards Jackie (on behalf of Tom Hamer)