Thanks for the responses folks. I appreciate everyone's willingness to offer suggestions.
For what it's worth, that bathroom where I store our gear is used as a rinsing station prior to hanging. Basically, my process is to use the bathtub to rinse all the gear after each day of diving (I oscillate between dunking and spraying off with the shower head). Then I hang the wetsuits up on a rod installed over the tub so they can drip safely. Then I put two fans on them and turn on the air conditioner. I also run a whole house fan to circulate air in an attempt to mitigate as much of the odor as possible. (Like I said, I use Sink the Stink once a month.)
Still, after an entire summer of diving, the house begins to take on that scuba funk. Thus, my idea of building an outdoor scuba locker made of mesh screen so it can all dry outside.
It sounds like it's really just undergarments that begin to smell which will mean I don't need to spend the time building a locker.