Have been slowly getting new Archiso scripts working with ArchBang. They use a profile rather than build script to create Arch media. Did not take me long to make it work with ArchBang, simply made mkarchiso my build script…
Know that more changes are on the way so Autumn release may take a little while to create.
Have been testing isos and so far have managed to get most things working as normal.
Biggest concern is the size of iso, ArchBang is running at around 900mbs. The biggest culprit is of course Firefox, Chromium would not be any better.
Am going to look at uefi support as I have a feeling Archiso runs a 64Mb efi partition???
Will keep you posted