Here is a link from the Roll Cages section showing the construction of a XP 1000 flat top race style cage with doors, a roof, windshield, and rear sheet metal I am building for my sons XP for anyone who is interested.
XP 1000 Roll Cage and door build – Polaris RZR Forum – RZR Forums.net
XP 1000 Roll Cage and door build – Polaris RZR Forum – RZR Forums.net