Sunroof really isn't a problem unless you need a helmet for track days and you happen to have a long torso.
"Bonus" Gas Guzzler Tax for auto tranny is $2600 (like Hognutz said) but manual GGT is $1300 - your stuck with it!!
Microfiber suede steering wheel and shift knob are extra $500 - I went with it after seeing a 427 Vette outfitted with one, nice feel and improved grip IMO. Some say microfiber wears out faster than the standard leather.
I prefer polished alumimum wheels.... BUT after the shine disappears in a single day I would have opted for the standard black wheels to disguise the severe dusting (Wonder if black is any easier to clean??). Some have gone with aftermarket ceramic pads to help reduce the dust bowl.
Good luck and hope your hot rod
Chevelle fared better thru Sandy....
I guarantee your ZL1 experience will be a blast!!!