You don't say, but it is my guess that you've never actually been on a bicycle tour. If so, you wouldn't be so cavalier with the uphill comments.

Another thing you've never done is fly with a bicycle packed into a 62 inch box. I have an S&S coupled frame and it takes 2 cases to fly with it: one for the bike and another for the gear. So, while you seem to believe that you could take 1.5 bikes in 2 62-inch cases, you will likely need, at least, 3. What is your plan for cases 3+?

The idea that you can use 62 inch airline cases as panniers is lunacy. Have you ever tried to do this? I have one of these beasts and I can't imagine trying to mount one on a bike (let alone 2). Would you put holes in it for hooks? There is no way to bungee them to the rack/frame. You seem to think this is a simple problem to solve, when, in fact, it likely isn't doable at all.

Also, I can't imagine trying to move these cases from airport luggage carousal to airport hotel by myself. I can barely deal with the two I travel with. Adding even more stuff to get around would be madness, in my experience.

I wouldn't spend alot of money making this fantasy a reality without first doing a couple things:

1) take a bike tour
2) take a bike tour with lots of weight that has some good sized hills on it.
3) try to attach a 62-inch case to a bike.
4) try to attach 2 62-inch cases to a bike.

But, good luck with your idea.