My cheapskate clyde touring solutions: I've had success with vintage Trek 620 and a mid eighties Raleigh Alyeska (see also Kodiak) I'm 6'4" 205. A good steel bike with average to decent wheels isn't going to blow up on you if you don't pack uber-heavy and you don't go bashing into every pothole you find. Fatter tires will buy you a lot of wiggle room in terms of what kinds of hits your wheels can take.
This is if you want to go touring on the cheap. That's what I always try to do!
I also have a rigid hybrid fuji that I did a lightweight xtracycle build on. I would tour on it no doubt! Lots of ways to get a big bike. Currently building up a very large old reynolds steel raleigh MTB for trail touring.
__________________
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley