I’ve had pneumatic before, no good. Punctures easily, lose pressure quickly due to small size , just something else to go wrong. The pic I showed lasted 15 years and is still operational over many rough terrains. Dare I say , don’t reinvent the wheel😜
You are out of date DD. Pneumatics are now available that are totally puncture-proof. And have been for some years.
But they may well be less suitable for twin axle vans. I do not have that experience to say for sure.
John