In the process of doing this. When you pull the diff, keep the side shims marked in bags labelled left and right. Dont mix them up.
When you pull the pinion out, measure total shim thickness, along with crushed sleeve thickness from the pinion. Then measure the sleeve eliminator thickness and stack the shims to make the total thickness the same as what you have with the crush sleeve and original shim stack. This will get you very close to dead on the mark providing you are reusing the original ring and pinion.
I purchased a bearing, and seal kit off evilbay with Koyo bearings for about $60. Comes with all 3 seals, 6 bearings, shims, diff cover gasket.
Then i bought a set of yukon clutches, with cross pin bolt, friction modifier, new yukon S spring, and yukon crush sleeve eliminator. Thats about it to rebuild one.