Look up z-hooks and z-clips to see if there are configurations that would allow you to only have to unscrew one piece, and then the others could be slid back from clips mounted to the grid.
It can't hurt to hang a moisture-absorption bag or two in the fore and main cabins. Then see if they have water in them in the Spring. Mildew is definitely an issue up here, even if not as bad as in Southern climes.
