Good To go on KW, I have stock pipes so I can't answer #2, I don't drag my pipes in corners or hit the speed limiter everyday, so in my opinion for 3 is not needed. With Audio controls with AC on I have no problem hearing my Honda front speakers at 80. with a setting of 14.
my # 5. would be MP3 rack
# 6. some kind of highway pegs to stretch
#7. GPS with power

everyone else can chime in on the rest. I'm fine with the seat.