If you want a touring bike, that's not the bike for you. A few years later the 610 was radically changed, getting a better frame, cantilever brakes, and generally better components; that's what you want. I'm not sure what year that change was made.

The mid-80's Trek 720 was an excellent touring bike, with unusually long chain stays, but heavier riders often complain the bike is noodly. At my weight that isn't a problem, but you weigh more than I. Note, trek recycled the 720 model number for a hybrid bike that does not have such a great reputation.