High pressure gas line

So here is my thought on all this. The trailer came with a factory installed quick connect and hose to run tank pressure to an appliance that uses a small high pressure bottle of gas. That is where I tied in the start of my stainless. The length of my 2000psi rated stainless tubing(not corrugated)is the same length as the hose it came with. I installed a 2000psi rated stainless ball valve at the tank tap and it is always off while not in use or traveling. There is a 650psi rated hose downstream of the ball valve tying it into the bulkhead where the stainless tubing starts. This will prevent vibration issues at the tie-in point. Very likely does not meet trailer manufacturing codes.............but I will live with that. The quick connect that was on at the tank is now at the end of the stainless tubing where a bulk-head ties onto a bracket. I thought this dude out pretty well prior to installing it. I have 31 years in Gas Construction and I'm very familiar with high pressure tubing installation and use. As stated not likely up to trailer code, but it should work fine for me.