GQ SAFARI UTE CONVERSION

[4x4rookie]

I'm 80% complete on a ute conversion to lwb hi roof safari to single cab with flatdeck tray to use on the road.
Only the filler on the joins then paint to do.
Whats the story with the body mounts under the cab ? The last set of mounts are around 300mm from the back of the newly formed cab, do these need to be moved further back to below the new rear panel to provide better support to the rear of the cab to comply with CCM therefore compliant for certification ? Anyone know or have the chassis chapter of CCM rule book they can check ?
cheers