I got mine through Knivesshipfree.com. Customs wasn't a problem. Can I just ask what concerns did you have? I guess I was a bit worried about the whole "its a knife thing" but its not double edged, doesn't look double edged, and is not an auto, assisted, OTF etc, so it was all good.
I did look at other companies like cystal falls trading co, and a few other ones, which had the Bravo 1 at the cheaper price, but they then wanted to charge around 30 - 50 bucks shipping, or more. So it all came to around the same price, and Knifesshipfree was in the end about 3 dollars more expensive I think, but that did include shipping. Plus I had heard many great things about KSF, yet not much on the other sites. But I got mine for I think cost about 200 AUD, and that was after all the 3% paypal fees and shipping.
I'll be writing a review soon, well I kind of already have written it, but don't hae any pictures, and need to add things to it.
About the thumbramp, I'm not actually sure how to use it to strike a firesteel
I did see an interesting thing on Bark Rivers website, they now apparently offer three types of bravo 1's, with thumbramp (standard), no thumbramp, and the no thumbramp, with a full height convex grind, so it would be like your F1, but without that bit of "saber grind" to it that the normal B1 has.
I'll give that Cannon camera that you suggested a look, it is a bit expensive, but, I'd rather spend 4-500 on a nice camera, then on a 200 dollar one that lacks something that I would want or will need replacing. Of course I have seen some great 200 dollar ones.