Terry, better get your eyes checked.... Peter's nurse with the battery box might be the go....An MR licence only covers up to a GVM of 8 tonne,
https://www.nsw.gov.au/driving-boating- ... ce-classes
MR vehicles include:
trucks and buses with a GVM more than 8 tonnes and 2 axles
any towed trailer must not weigh more than 9 tonnes GVM.
Automaticsynchromesh condition
If you’re assessed in a vehicle with an automatic or synchromesh gearbox, a condition will be added to your licence. This means you’ll only be allowed to drive vehicles with a similar transmission.
To drive a vehicle with a constant mesh gearbox, you'll need to be tested or assessed in that type of vehicle.