What spacer are you referring to? I have never seen a spacer on the filter mounting bolt. The filter hangs loosely on the mounting bolt so it can float up or down depending on fluid level. Go to the Int'l Full Size Jeep Assoc. www.ifsja.org
and you may be able to find the other parts. As for the QT fluid, you can order it through BJ's Offroad or make your own fluid by mixing 3 quarts of 30W non-detergent motor oil and 8 oz of limited slip additive.
73 Jeep J4000 360 .040 over, Summit K8600 Cam, Edelbrock Manifold and 750CFM 4V TH400/1339 QT
78 Cherokee Chief- Hunting Property Rig
05 Grand Cherokee- 3.7 V6 5 speed auto