I've decided on this. I will leave enough room around the 4 x 8 table to walk around and back to the salt tank area. I also plan to keep the center section semi-removeable just in case. If I do move the tanks over next to the water heater, I'll just add on to the 4 x 8, lose the center, and move the 3 x 6 section closer to the corner. Will post pics once I get the benchwork done. The room is already preped with a new electrical circuit and lighting. Just have to decide if I want to put up paneling or not... The wall behind the 3 x 6 section is concrete, but the other 2 (behind 4 x 8 and the door wall) are stud walls. Concrete by the water heater.