I finally got to install a new LED LCD TV in our 2005 Sea Breeze 8321LX. Here are some of the goals I decided on before I started:
- use as much of the existing framework and caging as possible from the original TV mount
- have the TV sit lower in the frame to improve the viewing angle and alleviate head tilt.
- get the TV closer to be cabinets so I wouldn't bang my head on the frame any more.
The new TV is an LED LCD Vizio XVT323SV 32” bought from Sam's Club. I bought it bacause of the size; it fit in the existing void with 1/2" space on either side (32" space - 31" TV width) and the old frame facing fit perfectly. I wanted the extra 1/2" to help mount the old frame. It also has front facing speakers and has Internet capability.
Here's some pics:

Original factory TV installation. Note how the TV extends about 4 inches beyond the cabinets.

Factory metal framing that requires modification. I did insulate the front cap with regular bat insulation and spray adhesive.

I used the exiting metal frame and had it cut to fit the new TV.

The original bottom tray is repositioned to hold the new TV mount.

Disassembled original wood framing.

Modified the original frame. This is where the 1/2" on each side came in handy - note the plywood brackets. I turned the frame upside down in the new installation.
Almost done, testing before final assembly. Still need to done something about the hole above the TV
I want to thanks everyone on the forum for their ideas and comments about replacing the front TV. I spent allot of time reviewing previous posts on TV replacement and was able to use many different ideas from our forum participants to get this done.