Nick made it look simple and in fact it was. Well, mostly it was. Nick casually stated that the first thing you must do, if it hasn't already been done was pick out the ackempucky that covers the setscrew. He indicated using a pocket knife.
Before I had done anything to remove this ackempucky, I noticed that it was a nice neat spot on the top of the headstock with a dimple right in the middle of it. I should have paid attention to that but I didn't.
I started with a pocket knife and then a pick and attempted to remove the ackempucky. I wasn't very successful. The stuff I was digging in turned out to be more like a soft lead than what I had expected. I now believe that I should have used a 3/16"-1/4" brad point bit to drill it out (by hand - no drill motor). That dimple would have made a fine starting point.
I finally got down into the ackempucky and got out the allen wrench to remove the setscrew. Bad news, all I was doing was stripping the setscrew. Got a new allen wrench (clean, sharp corners). Put it in the allen screw and tapped it in with a hammer and very slowly removed the allen screw. For awhile it looked like I was in serious trouble.
Now I need a new allen screw. No problem, I have the help kit.
Went ahead and removed the quill, cleaned and waxed it and put it back. No problem. Everything worked just like on Saturday. Put the set screw back and thank your lucky stars that you got out of this without stripping out the allen screw and whatever else....but wait, there is no setscrew like that in the kit. One close but a lot longer. Used that and got it back together. All works well except I have a set screw protruding up out of the headstock an 1/8" or more.
Go buy setscrews. Get an assortment.

Moral to the story ---- Don't take it apart unless you need to. Curiousity will get you in trouble. If you must, make sure you have spare parts and technical assistance standing by.