You, as an individual, will not be able to get CITES from the USA
No US wholesaler will sell to someone without a business license and no store will go through the hassles of getting the paperwork
The only way you will get hard corals or clams across the border as an individual is illegally

Not true.
I had a wholesaler in the states that would do it all, but required a significant purchase.
Although I'm not sure if I needed to give my business license from my electrical company to them. It was just too expensive.

It's way easier to go to your lfs and ask if you can get in on their order, tell them you'll assume all responsibility for the boxes you order. Makes it cheaper for everyone. But probably have to be a 1000$ order at least. And if they are all doa then that's too bad, you have to eat it.