I took a different approach with plywood, piano hinge and
suitcase latches. This gives me maximum storage behind
the TV and seems secure after a bit more than 200 miles. I
did have to use angles to secure the 24" CRT TV frame to
the steel structure, and I secured a 1" high length of oak
below the plywood so the hinge & latches don't bear the
weight while in motion. I got a flat wall mount from monoprice.com and used longer screws for the lower pads to hold it against the angled frame. I still have to veneer and then finish
the 9 ply (cabinet grade) plywood. These photos were
taken before I installed suitcase latches, so the black strap
above the TV is a temporary holder. I also used rubber
equipment feet on the latch edge to get the same spacing
as the piano hinge.
My first time including photos, so hope it works...