I installed the coilover hoops when I thought it was going to be a street car. For the time being I will leave them in, but may cut them out later, because the cage will tie into the upper shock mounts.
Even if you run J bars tying to the cage to shock towers, I would keep your coilover hoops and support bar. Your design of those is a thing of beauty, and secondly, you will have no doubt of front subframe integrity. Besides, those hoops have Badart written all over them. : ) I'm looking forward to your thread.