I'm a Junior Grade Three with META, Instrument Training.
Although the other several thousands of hours, 2,500+ multi, ATO might make it a different equation right ?.
Be carefull stateing that being a junior grade three and having multi training is a recipe for disaster.
There are many pilots that are in my position, i did my instructor rating with 2,000 tt, 700 mecomm, all charter.
With the possible introduction of part 169, a Chief Pilot will be required to have an Instructor Rating, i thought it would be a good idea to waste some more money, i'm glad that i did.
I'd rather be a Charter pilot with a junior grade three and META, than a Grade one instructor with META living with mum and dad in YSBK, opens far more doors.
Further to your point that you only need 50 hours twin, you still need to get through some crusty ole ATO to be approved, usually a 5 hours syllabus with a load of board work etc etc, if you are still not up to standard, you do not get the approval.