I'm up on the sunny coast. First year too, just got it all up and running just shy of 4K pixels.
Hansonelectromics are great, express postage,
Binny store great too for F8 power boards
PSUs I would use mouser and by mean wells I got mine in a week and free postage ans cheap.
Only local stuff I got was my materials, pole off a steel supplier local and good old Bunnings.