You have obviously never priced hardware cloth, Blow. Also, I've seen pieces of broken/exploded PVC as small as 1/16".
It'll be quicker, easier, and -cheaper- to go with PEX for interior use. (It doesn't like a lot of sunlight.) Just Do It!
AlsoRuns are: black pipe, 1/2" air hose, and the blue stuff they sell for plumbing garage compressors. It's similar to PEX but pricier.
-- Happiness is not a station you arrive at, but a manner of traveling. -- Margaret Lee Runbeck