I have to walk around 400m from my house across sand at low tide to get to the launching spot. Not so bad for slalom and speed gear (take it all rigged in one go), but when foiling I'll take the board out and then come back for the rig.
This thread inspired me to try and make a trolley to take all the foiling kit out in one go (and rig out there). Haven't actually tried it yet, but it is ready to go!
Started with a trolley from Bunnings that I already had and used the arms from a broken boom for the 'handle':

A few U-bolts to lock in place:

A bit of padding and a small box cable-tied in for a few bits and pieces

One rope at the back threaded through a pool noodle to keep the board in place, with another rope off that to keep the boom, mast and sail in place: