All 123's have automatic door locks. As for the windows, you could find a complete wrecking yard car and get everything including window risers, switches, etc. from the same car and probably do this.

I, personally, wouldn't lift one finger to add power windows. This just adds one more (four more) gadgets to the car that will break and cause trouble. There is nothing like manual windows and manual sunroof. They are simple and trouble free.

My $0.02,