So I finally got off my butt & started working on my cage. I still have painting to do and the other bar behind the driver's seat to cut out. I also redrilled the holes on the passenger side to move the seat farther up on the cage and redrilled holes in the slider so it will move up farther also. The seats right now are mounted about 6" farther back than the stock seats were & that may be why I had trouble reaching the pedals on steep inclines. I still have the driver's side to do. The tabs that the shoulder seatbelts attached to will be moved to the diagonal bars behind the seats. I'm going to repaint everything and put another coat of truck bed liner on the floor before I put everything back together. This is what I've done so far:
Before pic:


Just bottom cut out:


Cage behind passenger seat cut out:




Grinded down, sanded and primed (it didn't have to be perfectly smooth):


The rear grinded down, sanded & primed:

Rear is finished:

From behind - floor & sides were relined with truck bed liner


From the front with new hardware - couldn't get the
broken bolts out so they were drilled to the point they could be retapped.


The only thing I have left is the cage by the seats that I want to modify to make it easier to get in and out but I'll need help with that. I want to do something similar to Miller's set-up: