As far as tickets go... Good luck, my friend. It's always a scramble and they sell out very very quickly. At the very least, get your memberships linked. You'll need one for each ticket. Probably best to choose "Best Available" and run for the checkout. Even then, I've always encountered some glitch. It is very, very stressful. Don't even leave it till 5 mins after it opens. They'll probably be gone.
Is there a US supporters club that could sort you out? Supporters clubs get their tickets before the general sale, as far as I know. I was able to get three this way last match (TBF it was Peterborough).
At least, if you're a member, you'll have access to the resale platform. Hope you can sorted, mate.