This will be a long post, more than likely, but I don't like overdoing it or confusing different issues, so I'm going to lay it out and then ask one question at a time. I'm also not totally devoid of common sense, so I don't want to ask questions that I can figure out the answer to in a timely fashion:

I purchased, for almost nothing, a 1968 55 HP Evinrude Triumph the other day. The motor had compression, but he said that he lost spark last fall. His local marina told him that it wasn't worth getting into something that old, and he didn't know anything about it, so he bought a newer motor and just put this one in the corner of the garage. He sold it to me for 75 bucks, and I bought it sight unseen.
I got around to opening the motor up last night. It didn't take long to wonder how he ever had spark in the first place. Almost every wire I see is at least halfway broken through in multiple places. They're corroded, bent, almost broken, etc...There's insulation cracking and falling off every wire you touch. Clearly, it's a 1968 motor.
I will be rewiring this from top to bottom. I'm looking for wire right now, but before I get that far, I'd like to know how to hook up the new ignition switch. He kept the old one. So let's start there. I'll tell you what I have, what wires I have by color, and if someone could chime in with how to hook them up, we'll be off to a good start:

Wires (I believe these are all 14 gage, except for one, but if I'm wrong, then please tell me before I buy the wrong wiring):

Red---------------------------To Selectric Controls
Light green (14 gage)--------To Selectric Controls
Blue---------------------------To Selectric Controls
Dark Green (12 gage)
White
Black
Gray
Red with a gray stripe
Brown
Red with white stripe

So, I went and bought a push to choke 6-pin ignition switch. The marina wasn't a lot of help with choosing it, but it's what I have around here. I believe this is right, as there's no automatic choke button on the selectric controls. Subtracting those 3, I'm guessing that one wire doesn't go to the ignition switch, but to the tach. The truth, though, is that I really don't have the foggiest. What wire goes to what posts on that ignition switch, though?