You can probably do a general search to find similar setups. I found a picture of the TV install on your coach and it was similar to mine in that it is in dropdown box from the ceiling. You have a couple choices as to how to do this. If you choose to install a Flat Screen that is the same width of the cabinet you can mount either on a swing away arm or a flat piece of wood that would install into the opening.
I chose to mount mine on a swing away so that I could use the space behind it for storage. I found a Hitachi 32" LED that barely fit between the 2 sides of the cabinet. One thing that I did was to mount some secondary support on front of the cabinet that takes the weight of the TV and locks it in place while traveling. Most TV have no structure in the back panel that you screw the mount to, there was no intent for the TV to be bouncing along in an RV.
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi