Has anyone ever installed power windows/locks to your RS? Can you use the factory ones from a junkyard? What exactly do you need and how hard is it?

I don't know everything you will need but unless you want to cut holes in your door panel for the switches you will need to get some door panels from a GS, GST, or GSX that have the places for the switches. I think you will also need to take the whole window unit from a GS, GST, or GSX because I think the bracket that holds the window is different with power. Im sure someone else will jump on here and tell you in detail what you need. Later

Spall window kit. That is what I used. Not too hard to install either. Then you can get the factory door panels from a GS, GS-T, or GS-X, and use the factory power buttons. Or you can use the buttons that come with the kit and mold them into your current door panels, the choice is yours.

How much is the kit? Where can I get it?

I'm thinking power windows would be pretty sweet! :)

Check here...
http://www.commandocaralarms.com/itemdetails.asp?ProductID=428

It is not too hard to install, once you figure out how to mount the motor. Good luck.

I haven't done this myself but I've looked into it. If your going to get the SPAL kit you can get it of ebay from a dutch auction for like $128 shipped with a 3 switch kit.