Since most RV are similar I’m going to post my experiences.
I don’t like to make large holes and drilling into the unknown on an RV makes me uneasy. So I proceeded with caution.
I prefer the plastic wall anchors since they are less damaging and easier to remove if needed. I’m also not a fan of having something metal sliding around should the fastener need to be pushed through because it can’t be removed otherwise. The metal ones are pretty permanent.
I mostly use command outdoor strips unless there is going to be any weight then I use anchors. The vinyl will stretch and buckle if there is any weight on the strip.
Some helpful info about luan walls and pulling on things that are screwed to it. It can help to reduce the strain on the fasteners when removing a plug from the strip by also using outdoor command strips in addition to the screws. This helps to spread out the tugging wiggling force on the fasteners that can eventually split the luan and pull right out.
I removed a hanging hook thing that my rigs PO installed. The one I was putting up was larger and lower on the wall. The holes turned out well after pulling out the plastic wall anchors. filling with wood filler and touching up with a matching color. I mashed the vinyl wallpaper back into the hole which helped it to be smoother.
A word of caution. I would look at your wiring diagram to find out where your wires are. My 120 runs near my table but I have a different rig obviously.
There can be conduits where everything feeds.
For the new holes. First I poke a probe into where I want the hole. I have a long darning needle I use it isn’t sharp enough to puncture a cable. The yarn through the eyelet helps pull it back out. This gives me the depth as well.
I try not to drill with too much effort because all you really need is the opening in the luan to be large enough to tap the anchor into place. Of course if you have a stud you should use a stop to prevent the drill going deeper than the thickness of your wall.
One reminder. Honestly I thought everyone checked fastener length. Until I had my husband help me with changing the bracket on the countertop. He drove a screw that was too long into the extension part and popped a crack into it. I wanted to cry.