Buying stuff for a new trailer is fun....
Here is the TV mount I used
If the TV is tilted down too much you can't turn it around, but once it is more vertical it turns with no problem.
If you are looking for a DVD/Blue-Ray player that can fit in the small shelf below the TV, here is the one I got:
Amazon.com: Samsung BD-F5700 Wi-Fi Blu-Ray Player: Electronics
You will need a 270 degree HDMI fitting so it doesn't stick out:
If you have any recommendations that fit the 29qbds well, I am all ears