Side levelling of caravan on driveway

I would use a plank, even two planks if necessary, cut the ends at an angle so the wheels can easily run up onto them.  We carry a couple of bits of decking for sideways levelling on pitches.

Our driveway slopes in 2 directions, a 10% slope up from the street, and  then sideways it follows the slope of the street itself, sloping down from left to right as viewed from the street.  The van goes on the right hand side, hitch first, then I have made a couple of ramps that it rolls back onto to help keep it a bit more level, the right one being a bit higher than the left one.

This gives the wheels a level surface to sit on, which allows me to safely jack it up to fit the AlKo locks (twin axle).

The rear steadies need to have  wooden blocks under them, and the nose is as far down as possible, but the van still has a bit of a slope, which is disconcerting when inside it!

I did wonder about the suitability of these plastic ramps long term. Because it seems to me that the tyre would naturally have more pressure on one side, due to the top of the ramp being not level (sideways). Ideally you'd want the bottom of the ramp to be sloping. I hope you see what I mean. No product is built in this way. I would think that these ramps are ok short term, but I would worry that I was causing damage to the tyre if used long term.