Welcome to the Loony Bin!!
Ya might want to add a kick-start to the "mod wish list". If y'er comfortable doing a cam, then the kick-start will be easy.
Watch out with the USB charger... some electronics can draw power even when not in use. Dead batteries suck!
Best bet (and easiest to buy & install) would be a second 12V outlet inside the tail box and a car-cord for the phone.