Sure appreciate the kind and generous offer, but it fixes the wrong problem, I think. I csn figure a way to get elec and antenna wire from the upper right cabinet to anywhere I want to FIX the TV in place - it's finding that place that had bedeveled me since '05 when we got the rig. (It is an '05 model in case I've said otherwise.)
The problem is w/ me. Even at home, w/ a big 36" old tube set, I must sit no more than 4' from it to view, and usually have to lean far forware to read text onscreen.
The best working option we have is either set TV up (and take down) on dinette table while I sit at dinette and Martha on sofa. We can both sit on sofa using a TV tray for TV in aisle for 15" computer. Optics are funny, but doubling screen size does not double distance I can sit away.
I have had my mind on that plywood back to the dinette seat behing the driver's seat. If I could dream up a way to slide the TV up, then swing it out and forward to me sitting on the end of the sofa... I should have remained a mechanical engineering major back when!