tunahead, i've got a similar rack system and love it. i mounted two racks on the splashwell by the door and two on the gunnells behind the pedistal seats. you can store2 tanks in the fishbox in the deck and 5 in the well in the cabin. i made a plywood insert that fits in the foward well and cut holes so an AL80w/boot would stand upright, works great also. than gives you storage for 11 tanks and usually we go with 4 divers and 2 tanks each
i also have he teak platform with 3 steps and i added a handicap rail i got from home depot. it really helps.