Hey Fred, I got your email.
Yes I have the MSD, however I do not have the 6AL. (Old technology hehehe) I have the new Digital 6 which is the bomb diggity of MSD's as far as features goes.
Basically it take all the "add on" boxes and includes them inside the unit. They are adjustable with a small screwdriver instead of "pills"
In regards to wiring the MSD I suppose it's all relative. I found it pretty easy.
All you have to do is call JWT and ask for the schematic for wiring an MSD to the factory ignition. (Or maybe I can scan mine if I can find them)
Basically you interupt (cut) a terminal inside the dist and solder a wire to it and drill a little hole in the side of the dist an run it out. That was the old trigger wire for the factory coil. Now you will be sending that trigger to the MSD which will fire your stock coil.
You then have to tap into the +/- leads of the distributor for the MSD, and then interupt the coil wire.
All said and done it's a 4 wire operation. You need the JWT instructions, but someone who REALLY knows what they are doing can just open the FSM as JWT uses the FSM diagram to tell you how to do it.
If you run and external coil it gets even easier as you don't have to interup the coil wires in the dist any longer. However you do have to modify the dist cap for an external coil. piece O' cake.
The Digital 6 will do a timgin retard up to 9* and has a two step rev limit built in, along with few other things that will not matter much. Bascically the two step and retard active whenever they receive 12v+.
Hope that helps.