My 96 T & C has 287,000 miles on it, and you can have it when you pry it out of my cold dead hands. The 3.8 is a fabulous engine, best I've ever had on any car. At 287K miles, it still does not lose a quart of oil between changes, and I have not been fussy about the oil change intervals. 5,000-6,000 is normal for me. The transmission is a different story. Mine worked just fine until it gave up the ghost at 198,000 miles. It had developed a leak, and was filled with the wrong fluid, Dexron, which many mechanics will tell you is fine for these transmissions. Simply put, it's not. $1,200 later, I've also learned that the leak was caused by the solenoid pack overpressurizing the tranny, and could have been resolved with a simple swap of that component. Your transmission will function just fine if you get it flushed every 50,000 miles per the owners manual, and always fill it with ATF+3 or ATF+4, whichever your owners manual recommends. And if it develops a leak that seems to be coming from everywhere and that no one can trace, get the solenoid pack looked at. They can be checked with a plug-in diagnostic tool.
As for the AWD, I've never heard of a problem with it, but then again, so few were sold, it may be tough to gauge.
Also, depending on where you live, you might want to talk that price down a bit. It's in the right ballpark, but might be a bit high--although you'd have to say 62,000 miles is quite low for the age of vehicle.
Anyhow, I think if you buy it you'll love it.
Rick