There seems to be the opinion that you just do 750 hours in a Jabiru and then switch into a GA reg'd Jabiru or 172 and do 750 more and you get a shiny piece of paper with ATPL written on it.
Please explain, beyond the theory subjects and required PIC, IFR and night hours, what else do you need?
There are plenty of ATPLs out there who have never flown anything bigger than a light twin; possibly only to gain the CIR part of the MECIR.