Re: second seat, foot pegs/highway bars, lighting kit?
yeah, footpegs on the forks isn't very stable. try riding your bike and stick your feet up on the axles and see what happens.
as for my previous comment, i lean pretty far into turns at speed and could scrape my pedals if i wanted to. which i don't. also, make sure you have hand brakes, 'cause trying to find your pedals in an emergency stop to use your coaster brake wouldn't be fun.