I was thinking about this a little more...
What about just a main hoop (b pillar) with harness bar in the middle, and tied to the rear hoop (c pillar)..
-Greg
A-pillar is the "weakest" point in my opinion, so i feel if i guy were going to not install a piece, it would be the rear C-pillar section. However, I will not sell as pieces, sorry, if a guy isn' t going to install a section thats his choice. Keep in mind I am building it as a full structure not making one piece capable of withstanding more than another. If guys just wanted a rollbar, i could build just that. but i would make it out of 2.5''x.25'' wall, with extremely large plates on the floor, and i am not sure how well it would fit, or look.