Hello Doug, please no panic, the solution to your issue is simpler than you think!
About the resistors value and the instruction to desolder the two 220 Ohm, then the more logical conclusion I came to is that the original parallel of 220ohm and 560 ohm gives a final value of 157ohm, pretty close to the 150 ohm you found. The best way to fix this problem is to simply discard the 150 ohm in your yoke and solder a couple of 560 ohm ones in their place.
To fix your other problem, first thing to do is to disconnect the orange wire coming from your new yoke, this is not required in your TV. I would simply snip it from the tab inside your new unit and pull the now "dead" wire away. So, now we are at 4 wires instead of the original 5, yikes!! This, again, is very simple to take care of, simply unite the Yellow and black wires and consider it a single wire. Again, me being me, I would make a jumper inside the yoke body and exit from it with our 3 wires.
Please, pay attention to the replacement yoke plug pinout, as drawn, it is wrong! (as an example, the red wire, called pin#7 does in fact go to pin 8 of the plug, so, unless i'm barking up the wrong tree, something is amiss!)
Also, if your new yoke does not have the series RC cell (68pF 3000V + 1000ohms) across half of the horizontal deflection coils, you'll have to transplant it from your old unit.
I hope I was of any help to you, not a pain, unfortunately my english is not too good
Cheers
Giulio