Does anyone know where you can buy these cards, or if there is a reprint imminent? I cannot find them on amazon and my group (new to GoT this year) is gearing up for tournaments.

Unrelated side question: do tournaments allow the littlefinger variant?

Thanks in advance!

They announced a reprint of this cycle several months ago. It is anticipated to be available within the next month or two.

They are listed in the "Upcoming" section on this site. They currently have a Q2 2013 release window.