Planing to do a some FIFO Coro sailing this summer ...and flying with gear is a PIA..my research came across these guys in Gero .. lockboxstorage.au ...

basically you rent a ' box' it big enough to store your gear .. or several lots of gear ..even a bike or camp gear etc , you could probably store your kids that no one knows about .. or your WA wife in there ...plenty of options :) they normally drop off/pick up the box , but you can 'Pre' arrange to load box on site ..and unpack on site..seems like a great option ..not too exy , the guys there super helpful.