So for those who might be interested, I have pulled the spare pump apart, figured out what's what and put it back together again. Will it work, I have now idea unless I can get another pulley the right size. I'm thinking that when I pull the pump on the car, I'll swap out the canister, fill it with type F and see what happens. It seems to bench test okay, but that is with no fluid and just turning the shaft with a 3/8" Allen key (in the shaft open end).
I am also pretty sure I know why these whine and why the guy on the Eaton video, which is also on the NPD website, had more whine than before. He thought he was doing the right thing by surface grinding on of the two plates. He only took off .0005", 1/2 a thou. While I don't have a surface table or any other dead true flat surface to set the pump up on, I was able to get a very rough reading with a dial test indicator, that there is zero clearance between the "campack" and the top and bottom plates when assembled. This mean that the moving parts inside are in contact with the two plates, so without a sufficient film of fluid between them, you get noise.
On the one I'm playing with, I found that it was hard to rotate the shaft clockwise (the way it rotates in the car). It seemed to want to stick and obviously not a good thing. So then I remembered something the guy on the FE forum said and that was to add some steering pump lube and leak stop. (STP). So I removed the outer housing, added a small amount of STP to the campack, put it back together and presto, no more sticking. Obviously there is some resistance when the "slippers" are at the tightest point in the eccentric body, but I'm wondering if the STP is compatible with Type F ATF. It does say "compatible with ALL PS fluids and will stop leaks and whine. Hmm.
I may go into what I actually did in more detail along with pictures if there is interest. Time is short right now, so till later.............