Lynx Levelers. Get a good 4 bags of them.
I took a sheet of 3/4" plywood, ripped it to slightly wider than the width of a Lynx Leveler and slightly longer than the length of 4 levelers. I did this 3 times. I spray painted each length w/ Rustoleum and than screwed (countersunk the heads) 4 Lynx levelers onto each of the 3 boards. Get a run of vinyl tubing and cut to the length of the screw and insert the screw into the tube and into the Lynx. When you go to fasten the screw through the Lynx and into the board, the tubing expands to keep the Lynx in place.
This helps to keep the Lynx from shifting and cracking under softer soil; generally gives a better foundation and a easy 3/4" lift right off the bat.
I than lay this board in front of the tire(s) that I need to pay attention to, build up the Lynx pyramid, cap the Lynx you intend to 'land on' and drive up. Get the Lynx Stop Chock so you don't roll off the other end of them. Keep your torpedo level handy, and get within 1/2 a bubble in the bullseye both front to back and side to side.
Than call it a day.
I was in a rig w/ the Bigfoot levelers, and those things are absolutely AWESOME. However, at over 4k to install them and sacrificing the CCC I'd lose on my coach, the plastic Lynx will do just fine.
Amazon.com: Tri-Lynx 00018 Lynx Stop 'N Chock Interlocking Wheel Chock, (Pack of 2): Automotive
Amazon.com: Tri-Lynx 00015 Lynx Levelers, (Pack of 10): Automotive
Amazon.com: Watts SVGE10 Pre-Cut 3/8-Inch Diameter by 1/4-Inch Clear Vinyl Tubing, 10-Foot Length: Home Improvement