I guess they will sell them direct, just email them and ask. I don't know much about US shops obviously so can't say where you could find a body for the best price if they don't sell you one directly. But so far every (= not many) US based manufacturer I have contacted about non-ITAR products has been willing to sell direct. That might be of course a different situation as not all products have a reseller over here.
But if I remember this right, the GT14 is around $450-$550 which would be a good deal I say. It also comes with a broad range of accessories, including a camera adapter which was a nice surprise (not a perfect adapter, but does it's job ok).
Edit: also for $675 you can have the NVM 2AA which is top notch and still affordable. http://abnightvision.com/NVM2AA.html
I haven't used that one, but I have read really positive words on this forum about the 2AA. It can't be bad as it uses good optics.