Finally got the time to modify the forward cabinet to allow room to put the TV above it. My Vengeance 25V has basically the same floorplan as the GreyWolf 26RR, but the RR had a much better setup for the TV.
Real simple job to use a recip saw to cut off the upper portion of the cabinet. Placed one-inch outside quarter round to cover the cut and stained it to match cabinet finish. As a side benefit when I put the quarter round on it created a new shelf with a one inch lip all around so I can put keys, remotes, etc., there and they won't fall off onto the floor.
I didn't think to take a before picture so the first one here is a "stock" picture showing what the area looked like prior to the project.
Here's the "after" picture: