Macktee; I was able to remove my Norcold 1200 LRIM and bring in a 24.5 cu. ft. side by side Samsung through the entrance door by first removing the refer doors, passenger seat, side grab handle, and the entrance door limit(the folding metal bar at the top of the door) allowing it to swing open further, past 90 degrees towards the outside mirror). This sounds like alot but was simpler than removing the window. This process also makes both refers lighter and easier to handle. The norcold also weighed more. Also no need for a pure sine wave inverter as the Samsung will run fine on on a modified sine wave as per Samsungs own web page. Not to sure about install cost as there are to many variables, but it's not that difficult. PM me if you have any particular questions. KDK