I’m familiar with that exact desig, its ribbon constructio. You stand up the steel hoops and use a million 5/16” sheet metal screws for the flimsy side panels. Its just an oversized metal shed Sears sold everybody in the ‘60s.
I believe the flat front and rear style isn’t allowed in FL because of the poor windload capabilitie, but where you are now I don’t know.
We put one up in 1 weekend w/3 guys and nice weather. It was on a flat 4” concrete pad which is not code in FL anymore. I know I keep saying FL . . . .
It was 40’ X 64’ hot as hell inside, noisy in wind, rain and when it expaned and contracted with changing temperatures used to make me jump every time with a loud “BANG!” We took screws out - we put screws in.