Have a look at:
Blutube - IBEX Australia
https://www.ibexaustralia.com.au
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Have a look at:
Blutube - IBEX Australia
https://www.ibexaustralia.com.au
Poly....easy to work with.
If will be using air tools, or need decent air volume, think about running a ring type main line, 25mm (bigger if your lucky enough to have a nice sized shed), slightly angled to drain as others have said, pull droppers from the top of the main line, couplers a foot or so from the bottom of the droppers, ball valve to drain on the bottom of each dropper.