Well, the reason I suggest getting the engine running first with a battery to power the ignition system, PAMCO or any other system, is because the PMA may not work properly with the first start after installation, especially with a capacitor setup. In the case of a capacitor, you could kick your leg off, but if the PMA was not installed properly, the engine will never start and there is no way to troubleshoot the PMA because the engine isn't running....
and you don't know why the engine won't start because you have not seen it run with the new ignition system...
Like, "Catch 22"...
If you have a battery or capacitor setup, it's possible that the PMA will "wake up" producing a destructive high voltage greater than 20 Volts that can fry the ignition system along with the rest of the electrical system so with the ignition running independently from the PMA, at least you can restart the engine and do some trouble shooting. If you hook up both the ignition and the PMA for the first start you are literally putting all your eggs in one basket....
So, wire the ignition system to an independent battery even before you install the PMA. Start the engine, get it running smoothly, shut it down and then do the PMA. If you do all this with the stock rotor still installed, you can set the timing using the timing mark on the rotor and stator. That timing will not change when you remove the stock stator and rotor, so the engine is good to go as soon as you install the PMA. You can use whatever timing marks are available with the PMA to verify the timing while also verifying that the timing marks with the PMA are correct as well.
So, my general approach to major work is to make it work before you break it....