I have never seen the poly's with the steel sleeves, every pair I have installed (a few different brands) install inside the stock sleeves. Ford sell the rubber mounts similar to stock and they come in the sleeves I believe.
i ordered stock bushings from autozone b/c i was in a hurry - I have poly in the other locations so i know have the stock rubber in the axle housing is a mis-match, but seems ok for now. They came with the metal sleeve and i got them in about 3 days i think.
the upper arm uretane axle bushings require the oem metal outer sleeve. so you have to torch out the rubber and reuse the sleeve. however I have found that not using urethanes in the upper axle mounts and using new oem bushings works great, keeps some of the bind caused by the urethanes out but still controls the axle good.