There is a thread here to get you started:
http://www.irv2.com/forums/f121/anyo...ar-181706.html
The Miramar is a very nice Gas Class A, and is surely not just an upgraded version of a different TMC model. It has a foundation frame that is much larger than many other gas Class A's...this can be seen in the extra large bins.
The 34.2 has the full wall slide and king sized bed that sets it apart!
Best luck on your search