If you want to get a hand on some copper where you are get friendly with a plumber especially one that does more industrial jobs, never know what big offcuts they can get there hands on :handgestures-thumbupleft:
When buying copper anywhere shop around as prices vary massively :handgestures-thumbdown:
Bunnings is your friend for soft solder, flux, torches etc. :handgestures-thumbupleft:
Any seals, clamps, ferrules, sight glasses, elements etc can be bought
here :handgestures-thumbupleft: