Roll bar with convertible top

[truegearhead]

I'm 6'3" and need a huge helmet XXXL, I know wierd. But I do have GT3 seats that are on the floor, even with the sliders the seat bottom is resting on the carpet. I also sit far forward which allows me to go higher with the bar (the top sweeps up as it goes forward so the further up the bar is the higher it can be). My plan is to do a hoop and tie it in at the top of the doors and then have removable back bars. Surprisingly this is legal for class 4 SCCA regulations. The braces will only fit when the top is up unfortunatly but I think this is the only way. I will also have to remove one of the convertible top bars, the roll bar will take its place and will hold up the top. Thats the plan at least.