I agree with Corey V18 are a better investment using 6 quarts tubs with lids would get old very fast on feeding day and cleaning day.
I would probably shoot for 60 tubs right of the bat, so you can have room left for this season but can grow slightly into it too.
As far a V18 racks C-Serpents is what I would recommend if you are in a hurry and probably also since you are in Florida, give Chris a call and tell him what you need and I am sure he can build it for you.
Now if you want something like the economy line and are not in any hurry contact Animal Plastic they will build the rack you need based on the tubs you want to use, tell them you want an economy line rack using V18 tubs and tell them how many shelf you want and they will build it for you.