I had a few things confiscated in years past but all were folders, either assisted opening (banned) or the pivot was simply too loose and it could be wrist flicked open.
My name must be on a list because every knife I've bought for the last 6 months (maybe 15-20, I bought knives for myself plus knife-crazy friends here

) had been opened and inspected by customs. Even fixed blades. All have passed through fine. Before that it seemed like maybe 1 in every 3 or 4 would get inspected.
If I were you I would be worried about that sharpened clip. The law is pretty clear that it counts as a double edge, or Dagger, and they are banned.
All is not lost though, if customs do inspect it, deem it a prohibited weapon and decide to keep it, you can get permission to still get the knife.
This is from memory, last it happened to me was about a year ago:
Customs will send the Aussie a letter saying they have kept the knife(ves) and will destroy them in 30 days (approx, from memory) unless they hear from you. You ring them and say you're going to get approval, that gets you some extra time.
Then the customer needs to go to the police weapons department and get a form, applying for approval to import a prohibited weapon. You need to provide them with proof you are in a knife club (AKC, you can join if it happens) and a little book documenting your collection, they let you know all the details of what you need to do anyway.
I have a couple emails from them with info I can forward on if you let me know your email, or send me one:
stevenkelby@hotmail.com
Either way I'm sure he can get them into the country, it just may be a hassle.
Not sure what the chances are of getting stopped by customs.
I would declare it as a Camping Tool or maybe Kitchen Tool or Cutlery.
Also, I have had customs hold onto things for maybe 6 month before letting them through, but never had anything not arrive eventually. The last thing was a Hinderer XM-24 blade only that nick Rossi reground and shipped last year, it arrived last month. I assume Customs were waiting for the other half of the knife to arrive at their desk so they could say it's a prohibited item, got sick of waiting, and let it through. I had the handle here the whole time luckily.
Also I've read stories on other forums of customs inspecting knives ad keeping them, then letting identical knives through for other people, depends on which customs officer you get I guess, and how he interprets the very vague guidelines they have. Except for the double edge thing, that looks pretty clear to me.
Hope that helps, the knives look fantastic, hope they get here safe!