[burner31]

Stick with the 6V but get the LED tail lights, so much brighter and safer, looks just fine and won't break the bank, may also consider the third back light in the rear window, just to make sure them knuckleheads see you. (I'm also running LED headlights/cowl lights and dome light, just haven't got around to the dash yet)
Its my set up and I am very happy with it.
But she is your car, so your decisions...post a pic when you get her home, we would all love to see your new car.