Since I'm going to make an actual plastic laminate (Formica) covered countertop for my kitchen cabinet I will have to make a new upper cabinet support, which I believe is the purpose of the twisted iron bars.
I will probably use two 1-inch square steel tubes or maybe splurge and use stainless steel which I can polish or brush. (Oooh, I like that idea!)
The hollow tubes will allow me to run wires through them up into the upper cabinet for computer sound system speakers that I will mount on both ends of the upper cabinet. The sub-woofer/amp unit is in the cabinet under the sink. I will also run 12 volt or 120 volt wiring through one of the tubes if necessary.
I will weld cross bars between the vertical tubes for a TV swing arm mount. This is my favorite place to mount a TV. No holes are drilled into any cabinets. I can watch TV in bed or swing the TV towards the kitchen or front couch.
The 22-inch TV I use on the road is the one I use in my bedroom at home. I just put it in the original box when travelling and mount it on the swing arm when stopped. I haven't had time to figure out a way to keep it from swinging when travelling. I have the same swing arm on the wall at home.
I might even bolt another swing arm on the backside of the first one and mount a 19-inch computer monitor over the sink for TV watching and computer work at the same time. The laptop will be in the closet and only a wireless keyboard and mouse will be seen.
In the slightly out-of-focus picture below you can see how I made a quick bracket to mount the Sanus Systems MF215-B1 wall mount on the existing twisted bars support. I made it out of 1/8-inch thick steel bar stock. I was enjoying my first bowl of cereal with ice cold milk from my newly installed Dometic 2193 refrigerator
I plan on working on the kitchen area of my Scamp
in a few weeks after I get back home from the Oregon Gathering.