Hmmmmm, battery may not be a bad idea, will give you more stowage room under the seat and really simplify winch wiring/jumpstarting.
Toolbox? Can never have enough toolboxes.
Could also modify the box to suck air out of the engine compartment, and push it up out of the now unused wing top vent. I can only imagine how hot it gets under there in So-Cal when you're out in the rocks.
My oil line fix
My 100k stopped odometer fix
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.