Storing pop top caravan on sloping driveway

Over the length of my 14' wind-up camper trailer I have about a 15cm slope in the driveway. I usually put a sleeper cut-off under the jockey wheel before unhitching. If I forget, I drop the hitch onto an axle stand and put in the block. I can do this without fully retracting the jockey wheel. My driveway does a dogleg at the gate onto a small apron and the slope I have to deal with depends on the exact angle of the trailer as there is a slight slope across as well.

1. No worries

2. High lift jacks are generally not recommended to be used for caravan lifting. They are too unstable. Get a jack that has a reasonable footprint on it. Alternately, use an axle stand and your jockey wheel to get a good block under the jockey wheel.

G'day Andrew.\
I open my poptop and have rolled out the awing on a slope. Nothing unusual there.
I have exactly the same situation. Unless you NEED the van to be level, then the slope runs water off the roof and doesn't pool and go dark or stains etc. I use the jockey wheel and various blocks under the wheel and A frame, and also have either an axle stand as mentioned or sometime a car jack. ALWAYS make sure FRONT AND BACK sides of the wheels are chocked to prevent any slewing sideways at the ball coupling. It can be unnerving if the van suddenly moves sideways and comes off the blocks or stands. Ok on flat ground, usually, but on a slope Murphy can take over.
I have a Hilift jack but it is not wise to use one for your situation. All the unseen forces of weight and rolling might catch you unless you can think it all out and be very aware of what can happen!

Just google longer caravan jockey wheel I found 6" and 8" longer versions. If that's long enough maybe mount it on the opposite side and just use it at home.

And best to NOT RELY on the jockey wheel alone when at full extension, distribute the weight between the axle stand & jockey wheel , my tow ball weight was 260kg you don’t want that dropping down on any part of you, better to be safe than in hospital ?? use 2 axle stands if it makes you feel comfortable.