If I was looking to reinforce just one wall, or just a section of a wall, I'd seriously consider something like 1/4" aluminum. I haven't looked recently but a few years ago a 4X8 foot sheet was like $400
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.