Also, if he already has all the subjects and is currently flying a B737 he shouldn't have any problems setting up a flight test under the new Part 61 requirement. It would almost be a non event to simply have a CASA accredited Flight Examiner observe his next routine simulator check and sign it off.
The real rush to get an Aussie ATPL before the end of the month would surely only be for those guys who have all the prerequisites but currently no access or rating on a type above 5700 kg.