I think your best bet would be ebay. No matter where you try to buy it you are gonna have to pay an arm and a leg. The Guns N Roses pinball machine is a pinball classic. Not only do GnR fans want to own one but several pinball machine collectors want there hands on it. I know a guy who travels around to different house auctions and garage sales just to see if he can score a pinball machine at a decent price. He has only bought 1 by doing so. There is a computer program called pinball mame that allows you to play your favorite pinball games on your computer. I dont have any clue how to install and work the program. You could find more at
www.mame.net Good luck on your hunt hope you can find a machine at a resonable price.