Welcome to the HUBB,
if you run a winch ( or plan to in the future) or are planning on heading well off the beaten track, consider a triple battery setup.
in the 90, I run 3 batteries, 2 main starter/winch batteries (in parralel) and the 3rd on a split charger relay, which cuts it off from the 2 main batteries when the ignition is off, the fridge,flourescent lights, etc etc all run off this battery.
even if you run 2 batteries - you want to separate them, so you cannot flatten your starter battery and leave yourself needing a jump.
They all fit under the passenger seat - just - though I had to cut away part of the access to get the 3rd battery in.
If you can, use Optima red/yellow tops - or a good quality equivilent gel or bead type - they are very expensive in the UK, alot cheaper in North America !!!
Buy a water/dustproof blade fuse box and mount it on the bulkhead behind the seats- easy to access and kept out of the battery box - which tends to fill up with dust/sand/mud/water
Did you import your 110 - or is it an ex military ???