There really is no difference between a Sahara and a Sport (or any other Wrangler of the same model (ie. JK) when it comes to Frame/fender area. Wheels of a Rubicon, Sahara, sport, sport X, whatever.. will fit any other model. Really.. Getting wheels from one model to another is no worries.
Welcome to the fourm and to the madness that is JEEP! Looking forward to pics.