Did you ever work out a surefire method of getting all the air out?
Doc444, yes I did get all the air out.
I installed a temporary 5/8" diameter Prestone cooling system Flushing "T" at the very top and in front of the yellow oil filler tube, where the 5/8" rubber hose meets the metal tube that goes around to the FCV.
I used the "T" as a vent, I unscrewed the cap to let the air out after a fifteen minute drive. I saw the coolant level drop down from the expansion tank right away and I jumped for joy when I saw it happening. What a relief. Just measure how much coolant comes out and make sure that the same amount goes in.
When the cooling system was full again, I then removed the Prestone coolant flush "T" and brought the vehicle back to stock. I didn't need to splice the OEM coolant hose, I just used a small piece of 5/8 coolant hose that I had lying around.