You say your wife prefers an upright position. Make sure she's ridden in that position for at least two consecutive 60-mile days before you settle on it. And this bike has flat bars, which I don't think I'd find comfortable all the way across the country. What's very comfortable for five miles is often not comfortable over the long haul. But it sounds like she has a lot of cycling experience, so she probably knows what's best for her.
Personally, I wouldn't want to carry the extra weight of a suspension fork on a mostly-paved route. But the overall weight of the bike doesn't look too excessive.
The gearing looks pretty good to me--it's essentially the same as a Trek 520 or a Surly LHT. I don't think you'd have to change anything. Sure, I'd prefer a 34 to a 32, but it's not enough of a difference for me to waste the cassette.
The tires are Schwalbe 700x40, which is good, but I would definitely not ride knobby tires across the country. Chances are that these are the wire bead version of the Smart Sam, which are not half as good as the folding version of the same tire.
Front and rear wheels both have 32 spokes, which is probably good enough.
I don't see fittings for racks or for a third water bottle cage