I'm thinking I will build a platform for the tank.
I agree it ain't a shack anymore. The goal was to seal it up best we could to keep critters out so essentially it is a small house.
Cost was about 1500 bucks and whatever other materials we had laying around. Took us four days to build with two of us.
Those are black tail deer. I went hunting every morning and evening. Probably saw 50 doe's.
This property has deer, turkey, bear, pig, quail, dove and all the predators.