Here is a another solution I think I showed once here a few seasons ago. I use 16' welded cattle panels which bend easily into an arc, but then will spring back straight for storage.
You can make each hoophouse as long as you need by wiring each section to the next. The height is adjustable - mine are about 6 foot tall with a span of a little over 9 feet. The footer is 1x6 pressure-treated. The plastic is 6 mil IR, anti-condensate.
On cold nights I pull these blankets made of foil-faced bubblewrap over the outside.
For row crops I have a bunch of sections of concrete reinforcing wire which are bent into hoops about 30 inches tall. They are welded wire and stick snugly into the soil.
This also keeps our dogs and the horse from damaging things. You can see some over the melons on the right side of the photo below.
Anyway, it is time to start thinking about all this. Every day is bit longer now!
Lee