I have used modular tentage as temporary structures. The canvas can be had cheaply and if you find whoever buys the scrap metal from the local bases, often repairable modular frames can be salvaged. The key to surviving windstorms with modular is to secure every leg to the ground with stakes, and to tie off the peak of both ends with a guide wire to the ground. plenty of railroad ties on the flaps help keep it all in place too.
I recently bought a batch of mod tentage from the DND and for about $600 I got 40 salvageable centers, numerous fronts and rears, ten of the 10 man arctic tents, and a few other goodies in the pile.
Of course, if you are in an upscale community, the neighbors may frown on such a structure on the front drive. To this, I say, get thee out to the country.
Here is a photo of (one quarter of) another more permanent structure as I dragged it home from the local base a few years ago. Real cheap, and the work kept me busy for a few weeks.
