What about Chana vans?
They're kinda small, but they use 1.3 - 1.5 liter Suzuki-based engines and have a good warranty (Benni gets 100,000 kms... dunno about the vans). So even if reliability is below average (no indications yet), you can replace with original Japanese parts.
The refrigerated one is particularly attractive... oh, and look... there's space under the delivery container for an LPG tank on the side... just counterbalance it with something else... maybe put it on the right side to offset the weight of the driver.