Turns out that the MG Gundam Unicorn Banshee Final Battle DOESNT light up by LED.
Instead its a special material designed to react under UV or blacklight.
Source

At any rate I found 2 other places where you can buy him other then Tokyohunter. BiginJapan.com is one of them. The other is hobbyjapan.ocnk.net. Never heard of the last place but Im going to see if they ship internationally.

VGM out...