I was at Chicago motorcycle show last weekend (2/8/13) and they had the US made products in stock and available for purchase there. They said they were moving back to US to shorten the production to user "pipeline" if there are any issues. There is a lifetime warranty on wiring.
Did you contact Gerbing direct?
http://gerbing.com/They highly recommended having a controller. I did not see that on your laundry list.
They said many buy a jacket liner first and add on pieces as needed.
I was very close to buying, but thought I'd run it past the wife first.
It is MAP pricing, so it where ever you buy, cost should be the same.
Also unrelated, but of interest was the new F6B on display.