rgliedt,
Other part of your question about banking gas in bottles, are you talking about a cascade fast-fill system for your Fuelmaker?
If so, your openning another can of works. Fuelmakers are treated the same as a water heater or furnace in your home, they're an appliance as far as permits and inspections are concerned. Once you add storage and a dispenser/fill post the Fuelmaker becomes a compressor, and your system becomes a fueling station and is subject to those codes. Like all wiring must be in NEMA 7 boxes and explosion-proof conduit and fittings for starters.
Not fun!
Good Luck

Been there, done that!
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