I could never find scales that would let me to weight corners, but I was using quiet electric compressor to inflate the air bags before engine start and since it took some time, I could observe how it pumps up.
It is the rear suspension that makes for side to side difference, while front is equalized.
So one side lifted at 60 psi, the other at almost 90 psi. That knowing the axle weight allow me to calculate the side load.
Whoever design the conversion put batteries and tanks on the side of fuel tank. The other side has ... refrigerator.