As other have said you can lay two or three pieces of plywood down on the lawn and roll your KK and leap frog the plywood in front of the KK.
I may use this method when my KK arrives to my collection if I can drive straight in the backyard due to soft ground.
Komodo Kamado 23" on route
XL BGE
Kamado Joe Jr 13"
Wood fired pizza oven
Gave away a large kamado 18" to make room for the KK