I derived a method from my boat storage lessons learned & applied it to the landing leg support. Those Lego things are stupid & expensive in my mind.
My method it to buy 2X4s, cheap warped ones good enough, cut them into about 8" length & make cribbing, screwed together 3 stack, 6", high. More or less doubles the leg footprint & lasts for hundreds of cycles of use. They also come in handy for rig support if have to jack it up & transfer the weight. A good base for bottle jack too.
After about a 6 year life cycle they make fine firewood for one last use.