We had ours weighed at a local scrap metal recycler. Their scale was flat with the surrounding ground, so it was easy to get weights on only one side of the axles.
I got the following weights:
1. Right front tire only.
2. Right front and right rear tires for right side total weight.
3. Front axle only, both sides.
4. Front and rear axles, both sides for total vehicle weight.
Subtract right front weight from front axle weight to get left front weight.
Subtract right front weight from right side total weight to get right rear weight.
Subtract right side weight and left front weight from total vehicle weight to get left rear weight.