seems like way overkill, couple years back, had some were i want to say 200 to 300 feet of line put in. from tank. 1 run to shed, 1 run to house. it was a plastic hose. and then a tracer wire put in the trench. very cheap compared to copper or black pipe. only cost really, was the pipe protector as the plastic hose came up out of the ground. but that was even fairly cheap.
once plastic hose was put in outside, and ran between tank and then regulator on house. i ran some black pipe inside, to create a "manifold" bunch of tees and valves. and then changed to "copper pipe" off the manifold with compression fittings. to run copper lines through out the house. ((i took option of paying a little bit more for more copper being ran through house, so i could have all my gas valves (stove, water heater, couple wallinging space heaters, dryer) all in one spot.)) even then i saved a lot compared to using black metal pipe.
only reason why i went with black pipe inside for manifold. was i could quickly build the manifold and have a smaller manifold with black pipe. and it was more strong, so when i do shut things off. i would have less chance of botching up a copper pipe. that and it was easy enough to goto menards, and just grab what i wanted and build the manifold right there in store and picking parts out of the bins. without having to thread any pipes.
i went with copper tubing between manifold and each individual thing. due to it was much easier to run. and i did not have to thread any pipe, it was more easier to work in tight spots. and with a basement with "drop down ceiling" errr basement has ceiling tile that hangs down a couple inches. i did not have to drill through anything, and could just use little plastic hangers. and little bit of were pipe went up through walls. was very short. and i did not have to put in any sort of wall stud blockers, due to gas lines did not run through the walls.
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as much as Artisan might seem to be yelling, i am with him.
if anything just buy the plastic hose and tracer wire from gas company. for between tank and house. for the outside. so you get correct type of plastic pipe. and then pipe protector, for ends of plastic pipe that are above ground.