I am not sure what you mean by self-leveling. If you mean air bags that self-level while parked and in transit I doubt you can get that at your weight restriction but could add it for 6 or 7 grand. If you mean jacks the have auto level all of these do. I have the Vista 30T which meets all your needs and with three slides is great. I have added air bags for suspension at a cost of about six grand and love the ride and for another couple of grand could have it self-level. Sightseer and Vista are both a lot of coach for the money.