I have a high pressure outdoor stove that came from a popup. It was made to hang on the side of the popup. I modified it so now it will set on the top of a table. I did not like the idea of having it hang on the side of my camper.
I do 95% of my cooking outside, (my camper is small anyway and I like the outdoors). I had to plumb in a high pressure line. I plumbed it to the back of my camper with hook ups for the stove and grill. It could also supply other types of devices that use the higher pressure. I installed an adjustable regulator in front of my low pressure and have it set to 16 psi. I then put a T in the line and ran a 3/8 inch soft copper line to the back of the camper. I covered the copper with a rubber hose wherever it came in contact with the frame of the trailer.
The high pressure regulator is a single stage. I believe that is okay for the use. Of course the low pressure regulator is a two stage, but I am already dropping the pressure so the first stage does not have to work as hard. So far, I have not seen an issue. If an issue comes up, or someone fusses at me, I will move the high pressure regulator to after the T and then the low pressure regulator will not know the high pressure regulator even exists. I used flare fittings on everything which is acceptable for propane.
2016 Wildwood 195BH
2009 Silverado 1500