You can pretty much make all you need. There are some videos online about rebuilding the related od trans. There was an excellent series of photos on a Jeep forum posted by a guy who unfortunately is not alive anymore.
This video series CAN be tedious to watch, but at least you can follow it. This series tells you how to make the tools you need, except for snap ring pliers etc. You will need a press, a small one. I bought a used HF press for I think 50 bucks
