Your question all depends on the tires you will be running. I'm in the same type of boat for the -7. I'm wanting to lift it for running trails, not significant enough to cause a rippling effect to it's mechanicals, but enough to get 2-3 larger tire size.
I'd suggest coil spacers as a lift, then work on picking a good shock for the rear to work with the geometry of the rear axle. You may have to 'adjust' or add a spacer to the center link. Check your parking brake cable, check your bump stop locations, and you're pretty much set for the rear. Then for the front, do the same with a spacer, then configure the strut to give you the best ride. Do recall that the strut is usually too short in the droop and too long in the compression. So configure a mount to place the strut to take advantage of the travel.
I'd then add skid plates underneath, protect the gas tank better, add rocker skids up tight against the body, add front and rear tow points tied directly to the frame, add aggressive street tires, and be ready.
If you go any larger in tire size, you'll be adding unsprung weight which effects acceleration/braking, you'll be affecting overall performance of the drivetrain.
Lastly, I'd add the lower gears to the t-case to get better off-road control and capability.
All this will make your Trackick a little better at everything except acceleration, and keep it stock looking.
