I am afraid that they are not going to find anything wrong and then I am back to step one on trying to figure out what is causing the ammeter/voltage fluctuations.

If it does come back with no issues, then I am planning on pulling one fuse at a time while watching the ammeter/voltage gauge to see if I can locate a circuit that clears it up.
I was also thinking of buying a cheap stock alternator to test on the car too to see if there is any change.

Thanks for the replies.