If you're not able to visit any of the aforementioned brands:
If selecting H4L or GN why not speak to Jake or Asad or VKS and sort out a lovely off-the-shelf bat to your spec, without paying the premium for a custom. As an aside, a guy in my work team had a LH Supernova 4 star ordered for him by Elmer Cotton in Oxford. It has a few blemishes, but it is a lovely stick, great shape, more than suitable for us earnest clubbies. (Also, 'custom' GNs are stock shapes made in UK - don't know about Aus.)
I think Affinity had some pre-made bats for sale at really competitive prices.