My philosophy has ALWAYS been ... "If someone else can do it, I can too!" I've saved myself thousands and thousands and thousands of dollars on labor cost by following my own philosophy.
Lift the camper and then put supports everywhere on the frame, then lower the main lift so everything then rests on the supports under the frame. The more blocks, supports, jacks on the frame, the better.
When removing everything, just reverse. Lift from the key spot, and remove all the blocks, supports, jacks, and then let it back down.
Here's the key lift spot. After this, block everything, as much as you can: