Question About Buying Epigraph Trilogy

So... I'm in a bit of a pickle. Im trying to buy the Japanese Epigraph LN Trilogy, as well as both volumes of Braunian Motion of Love and Hate. For reasons ( somewhat hard to explain ), I cannot do this throw amazon.co.jp, nor through any proxy buying service like Tenso or White Rabbit.

My question is: is there some place that's under our radar where I could perhaps buy these in the U.S. that I don't know of?

Thank you guys so much, this is an awesome community!