Re: coil and battery tray
My 82 CJ5 battery tray has 6 attach points. From the bottom - up: there are 2 tube supports that attach to the bottom of the tray (one nut & bolted and the other just a nut on a permanent bolt welded to the bottom of the tray). The tray itself has a flange on the rear which takes 2 bolts into the firewall. Finally, there are 2 straps (one on each side) from the front of the tray up at an angle to the firewall - these bolt to the firewall at the top of the staps.
Does this help?