IMO it's prudent to be prepared with an assortment of blocks for the stabilizers ... with / without lift kit is a factor but more importantly site terrain.
As an absolute minimum I'd carry at least the height equal to the max lift of the Andersen levelers under the wheels needed for both stabilizers on that low-terrain side. In practice I carry much more. Blocks for the tongue jack, too.
Note that the sand pads add no meaningful height, just a larger foot (and that's useful, too). Some folks screw a piece of 2x6 to the sand pads so they always have an additional 1-1/2" boost in place.
YMMV, Happy Trailering!