not
too much to worry about with it sitting except zerk fittings, maybe oil change in the cone ?
replace fuel filter, oil filter, grey fuel lines, oil injection lines. others might chime in with something obvious i'm overlooking.
re: aftermarket bars,,, you have two options,,,, use stock stem and put bars on (along with a UMI type stop start, above, and maybe a finger throttle, which IMO is preferred over thumb) ... which IMO looks great. some pic's of two different x4's with stock stems and UMI accessories below...
this was my old x4 with $10 bars, and $80ish worth of accessories.
this was a friends, before he added the extra tto accessories....
same ski, with tto accessories added.
or go UMI, $400ish... which looks even better, and handles better (less play in the steering), but I never considered UMI because a) i'm cheap, b) I'm a recreational rider, I didn't like the stiffer steering that came with UMI, and i've ridden a couple with it installed, I prefer a little bit of play in the bars, I don't want the PWC to be that sensitive at 40mph...