I bought the '97 for my wife, regular cab 2wd, intercooled 12 valve, 5 speed with a pto. Probably rob the pto off the '97 and put it on the '99 and add a pto winch to the '99. When she died, I made it my daily driver. I bought it at a ritchie bros. auction for cheap, cheap, cheap, cheap. Watch those RB auctions, they have them all the time and you don't have to be a dealer to go and buy one.
Interestingly enough on the earlier dodges, the wastegate springs get weak from the heat. put a manual boost controller on them and turn the boost up abit. Makes a world of difference in the mpg's. The '97 routinely does 29 mpg on the highway and about 26mpg in town. Fuel gauge doesn't work in the '97 so I have to use the odometer and check mileage by calculation when I fill up. I have a gooseneck hitch in the '99, but with the 5 speed I had the trans upgraded to the new mainshaft, 2nd and 5th gears. I never had a problem with 5th gear coming off, but now I don't worry about it anymore.
With the little weed turning 12 this year, I think I'll keep the '97 as my daily driver, and give him the '99 quad cab 4x4. Then I still have the '04 as my pimp ride.