although done all the time changing crystals is illegal.

think down too!! cheap plastic storage units that slide under the bed can be a great place to store your "stuff", wally world has 'em.
building in the carport is fine but water tight is a must for balsa and electronics. check out SPAD airplanes they won't mildew

a door is what i use with a drop ceiling tile to pin to. a closet door is a little narrower and might store better. could go over the washer drier and hang on the wall behind 'em or under the shelf even if in a closet???