I read through that near obituary and just cringed.
Trying to sift through the proper information and just plain bad ideas really was entertaining at least.
Electricity ain't no joke - even a wall sockect will bark you if you're haphazard in your preparation. If you want to do the 120 boogie, make sure you plug your project into a multitap with an on/off breaker switch on it. It may save you from hopping up and down cursing in the dark from a popped breaker. You'll still be hopping up and down, but at least you can see what you'll bump into.
Voltage doesn't kill you - current does. As voltate goes down (120VAC > 6VAC), current goes up. PLEASE double check everything and get your hands clear before flipping the switch.
Cheap ain't cheap after you get the ER bill.