I feel you. Florida just gets so hot. It's worse when the shop you use is in the swamp where it is almost 100 percent humidity all the time. Even with fans it doesn't help because you just can't sweat.
i love the IKEA counter / sink. I had that in my bus for several months!
Sorry about that heat - I built in Florida last summer and practically combusted.
I put in a portable AC unit to hep take the edge off while building.
That may help.