My rig I used a 6 speed freewheel, phil hub, then only carried a spoke wrench
and the tool to pull the freewheel, off, and spare spokes..

with 47 spokes left, The use of someone else's big wrench to unscrew the freewheel
could wait a long time.. as I touched up the spoke balance to make the rim run true,
on the spot, when finding the 1 spoke broken.

Another approach, common off the peg wheels, that you will abandon to the bikeshop
that you buy the replacement wheel from.. after damaging ..

, if there were premium priced parts , the drop everything and shop hand build a wheel ,
in the middle of high season, is pretty un-likely, as then, there is likely a long repair backlog..