I have one of the Kelty side tents (pics above) AND a Tailgator, which I first saw at the 2009 Tear-Up on a teardrop from Canada. The woman's name was Syl, the husband's name escapes me. But they had three of them extending off the two side doors and hatch of their tear, which made it kinda look like a spider. Bone dry underneath (although it POURED) and none of them flinched in the wind. I asked them if they made them and they gave me the US website:
TailgatorUSA
It has LIVED in my Jeep Patriot for about a year because it also works on the hatch of my Jeep. It would be easy to hang side panels (either screened or solid) with clips off the Tailgator.
Haven't tried either the Kelty side tent or the Tailgator with my new tear, but both worked with the Sunspot, and should work with the tear just fine.
And I love that both together weigh less than my old EZUP, and one-person setup.