I'm likin that better than the little stub antenna off the side... If I go spectrum (Kinda like havin 27mhz all to myself), that's what I'd do... Very nice job, looks awesome!
edit; oh, the cap on the squeeze bottle... Napa Auto Parts... It's called a Vacuum cap; not sure what size it is. I buy my exhaust caps from there... Roughly about a buck for a pack of at least 2.