Here is another mock-up, which is what mine will be built like.
Note the openings on one side for gas venting. It will be reinforced from the bottom with vertical supports.
"This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption. Let us give praise to our maker and glory to his bounty by learning about... BEER."
Fryer Tuck - Robin Hood, Prince of Thieves
Kegged: Dry Cider, Sacch Trois Grapefruit IPA, Forbidden Witbier, Chocolate Coconut Porter
Fermenter: Apricot Pale Ale
On Deck: Barleywine, Nugget Nectar Clone
In the near future: Hoppy Red, Lemon Pepper Saison, Mango Habanero Wheat