My gun season blind Poop n Shoot :-)...
Here you go man, this is your answer to building a blind. Works well, of course take out the tank and build you a floor, cut some windows, make pexiglass henged windows and you are good to go. I have to get some burlap to go over the windows. to help hide my movements. This one has been extremely successful in the last 3 years for our group of hunting buddies. Just enough room, could be a little larger on the inside but definitely does the job.