donny's got it. Before the lift the sag on this thing was just about riding the back tire. It looks even typically. This is parked on a pretty steep incline, that might be giving it the appearance of a little read end sag. Keep in mind, its only a 2" lift.
Brewster. I know a lot of folks say the 3.0 V-6 is the worst engine Toyota has made (as opposed to the 22R/22RE/3.4V6) but I've had nothing but luck with the 3.0. It is pretty underpowered, but since I use the truck as a commuter, all I do is get it to 55 and cruise. I'll hit 20+mpg in the summer. If you get 33's she'll have enough torque to get you by on the trail, but don't expect her to be a dragster on the street. The factory sound system is TERRIBLE. You'll need new everything if you really want good sound, head unit, all speakers...
I love this truck. I have a '98 too and I just keep driving this one...