Welcome to the forum. I'm riding through Austin and Vancouver as part of my tour this spring, though I won't be taking a direct route. You should have a wonderful trip.

I second all of NewspaperGuy's recommendations. Also, that bike you linked to would be appropriate if you 1. are pulling a trailer or 2. will have a separate vehicle carrying your gear or 3. will be "credit card touring" with minimal supplies. Otherwise, consider a bike that is better able to carry loads.

Use the search function on this forum and you will find answers to almost any question you can think up.