I've used car scissor jack under axle but that was 1000kg caravan. Bottle jack would be easier as pumping it in confined space is easier that turning scissor jack. Best do trial run at home and make sure you have right tool tire brace to undo wheel nuts.
Rubber car mats + caravan porch mat help when lying on ground. Also block of wood to support jack on soft ground.
Rubber car mats + caravan porch mat help when lying on ground. Also block of wood to support jack on soft ground.