Seeking plans for (12-foot) hoophouse made with EMT (electrical conduit = metal pipe)

Z has/had been trying to resurrect our little greenhouse from last year – the one that blew over end to end a few times in the first night of the North Bay Fires. Well, it was really windy whichever night that was this week (Monday?). Z woke me up and said there were high winds and that the greenhouse had blown over. I told him he was dreaming and to go back to sleep. He had opened the door and felt warm air swirling around from all directions. We’ve been having low-to-mid 30’s temperatures at night, which makes this unpredicted windstorm extra weird! Ok, extra-extra weird when you consider that not everyone got this windstorm- out of Z’s coworkers, only one, who lives like 8 miles away from us, had had it!

So we need to build a very wind-proof greenhouse. We have no time or energy, so this is a real challenge. I have been thinking it would be a hoophouse. Most of the plans that I see are for PVC, but we don’t think plastic pipes would be strong enough. Z is tempted to buy a poly pre-built greenhouse used online. I dunno about that…