Do you have a floor jack and a place to work for an afternoon? Installing a body lift is pretty easy on a decent condition jeep. If your jeep has rust issues, then you'll have to determine if the body mount bolts are going be a problem. There are five mount points along each frame rail and one mount in the front center. You have to loosen the plastic engine fan shroud and the fuel fill hose....and the transfer case linkage. Then you loosen all the body mount bolts. Leave the passenger side bolts threaded loosely while you remove all the driver side. This will prevent any accidental shifting of the body tub while you lift the driver side.
There are a few different body lift kits and some are a little different. Swap in the new rubber on one side and lower the body. Put the bolts back in loosely and go to the other side. Repeat the process. You'll have to read the instructions and attend to the final details like reattaching the fan shroud, shift linkage, etc. If you can build a bicycle or child's wagon from a box of parts, then you can install a jeep body lift. The devil is in the rusted bolts, etc.
Many fellas will also lift the engine block at the two forward motor mounts at the same time they install a body lift kit. Both projects are about $100 each +/-. Most fellas will say a 1" body lift is enough. Wanting anything more is usually better solved with a suspension lift of some type.