if you're going to all that trouble, put the battery box on a slide so you can just pull it out to service.
If you have the standard battery box, it's very tall campared to the battery height. It's also open vented. You might want to get an aftermarket box. One that's shorter and sealed, but with a vent connection. You should have it vented, preferably to the outside of the chasis.
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.