I have the enitire rear axle, 50$ and its yours.
As for the gear ratio if yours is a manual w/ 4.0 its almost certain a 3.07 gear ratio and mine would be perfect for you. If not I also have my 8.25 w/ 3.55 gears that I can sell you too. It'll bolt right up and its welded w/ 27-spline shafts. I also have 29-spline shafts and the spider gears to go with as well. Those are un-welded so if you want to keep an open diff that would be the way to go. I also have a spare 8.25 carrier. The 8.25 would also come with YJ e-brake cables, they are longer and will not bind up your lift. It'll take me a week or two to get the 8.25 ready though as its currently under my Jeep. Oh, I would want 100$ for the 8.25 and spare shafts/carrier.
LMK