There was some "different" looking thing in the classifieds recently. It looked like a single bar all the way across, instead of the two hoops. I think the ad said something about just unbolting the stock hoops and bolting this contraption in. If it just goes into the stock hoop braces though, I don't see it being recognized as a "roll bar". Better check with whatever groups you plan to run with.
Joel is right. The real Autoform bar is not a quick and easy install, so I'd be trying to get started ASAP if you have events coming up soon.