The tent route is the way to go....
Dollar wise, building code wise, and cost wise.
The tent bellow I had made up from to party type tents that
cost me 99.00 bux's each, the tent has been where its at for
4 years, "wind, rain. thunder storms, snow, etc"
I stated before the only problem I ever have had was "mosquitos".
The peak is 10'+ and has plenty of room .
Some of the tent's sold "well just about all of them" are of a
thin wall tubing, what I did was modify the heck out of it .
There is only one anchor point in each corner, and the roof is
beefed up with galvanized pipe like used for fence, along with
some 1" electrical conduit on 24" centers .
"They work as good as you make em"