The best part about this CJ…. IT’S ALREADY YOURS!!!!! (Any jeep is better than no jeep.)
The 1972 to 1975 series all come with a C channel frame (not boxed) except at the motor mounts and is prone to cracking, particularly just behind the motor mounts, all fixable but something to check out on your ride. At some point in time it probably will behoove you to just box out the rest of the frame.
Don’t jack it up too high as the CJs are more prone to tipping due to the narrow frame. As the saying goes, sometimes less is more.
Decide what you want to do with your jeep, mud, sand, rocks, daily driver, etc., and then make a plan for the improvements you want that fit your use of the jeep and start work. This process more than likely will take years as time, money, and available parts allow, but that all part of the fun.