After building my first YJ, then a complete rebuild of my second one, I can take a look and let you know what I see and some of the potential issues you may run into if you want. Oh, and it's free. Free is good.
Built what I consider to be a modern CJ-3A, I call it my YJ-3A, better known as the Inglourious Basterd! 4" Rubicon Express lift, 8.8 diff, 35's, Banks exhaust etc...