A panel with access from the back would be useless on MY car because ERA uses the standard Jaguar "box frame" that houses the entire rear end assembly. You cannot access anything from the TOP, you need to go underneath or from the front (cockpit side). Now IF your RAM does not use the standard Jaguar mounting box or like the Kirkhams and CSX cars have nothing blocking access to the rear end from the back or the top, then maybe a rear access panel would work for you.
The E_brakes unbolt from the main rear caliper and then slide BACK and then DOWN to remove for servicing. Whereas the rear main calipers slide forward to remove or service. Lets assume you have the entire rear end assembly out of the car and sitting on the floor in it's standard Jaguar box frame assembly. In this case it's only marginally more easy to work on, it's STILL a pain in the ass to do any serious work. I mostly use the access panel area to BLEED my rear brakes every year. I totally flush out the system because I race enough where I get paranoid about my brakes.
