gastankbun.jpg
Here's the gas-bun on our 1992 26.
What matters here;
- no connectors inaccesible, hard pipes through walls (with grommets to keep distance and lots of mounting points so it will not ever move, chafe, crack or bend) only the last bit can be a flexible hose to the stove. And in the (ventilated, easily accessible for shutting it off) bun to the gastank of course. And for those there are stainless steel versions too that need less often replacement over the years.
Of course you have your own rules and regulations to adhere to over there in the US or CA. I just want to warn you not to take LPG/propane/butane lightly. Campers, caravans use it all a lot but those are not build as buckets that hold it inside.
you need to have easy access to the tank itself to shut off supply when not cooking or heating. Because gas sinks to the floor and builds up, plenty of explosions happen each season.
There are electric shut off valves and you can use them to make it easy to get cooking: flip a switch, start cooking, finish and flip it to 'off'. In fact, a little bit of imagination and some hardware and you can make it smarter so that it shuts itself off after x time of no demand for gas.
However, always shut it off by hand completely overnight.