Decided to make one of these myself.

Recently acquired a 2012 Nissan NV cargo van. As far as I know it’s currently the only one in Austin as they don’t sell them here yet. It was used with only 2k miles on it. I had Third Coast Vans add a passenger bench with seatbelts. They also walled off the front half and insulated it. In the back I had tie-downs installed and there’s enough room for both carts and additional hardware.

Pics here: