Wish I could help, it actually would work out well for both of us. I need access to a PC (never needed to buy one) and you need to learn how to use it. I'm currently in Maine and without a PC but I have a bunch of experience using them and have learned from the guys at
Meguiars when I was living in SoCal.
My wife and I are actually considering moving to the South Shore region of MA if a job offer goes through. Still at least a month away though so you'll need to be patient.
I can totallly understand if you want to get it done sooner. Suggestion would be to practice on a car you could care less about. Maybe a friend has an old beater that is willing to let you have at it? It is very difficult to damage paint using a PC as they can't do nearly as much work as a Rotary so don't be too nervous about it.