Hard to say with the limited description. The cooling system isn't hard to maintain, but your key pieces will be:
1. Good radiator - replacements are MUCH better than OEM and not too expensive.
2. Good thermostat using the temp recommended for a TJ. Cooler temp will NOT help.
3. Good hoses
4. Good water pump that flows IN THE RIGHT DIRECTION.
5. Clean lines, including the heater core area. A reverse flush would be good to get it all cleaned out too.
If you have a crack in your head, it will be more work, but parts are not too pricey and finding friends in the area to help should not be hard. Even local 4x4 groups will help for pizza and beverages.