I would be happy to give you more information on the Aeolian Grand that
you have to sell but I am mystified by you mentioning that you have two
blowers for the instrument.  Blowers provide air under pressure but the
Aeolian Grand works on suction!

If you send me a photo and a full list of the stop names, starting
at the left, I will be able to correctly identify the model for you.

Out of 350 instruments I am aware of worldwide, I do not know of any
other Aeolian Grands in Australia as Aeolian did not seem to start
exporting to 'Down Under' until the later models were made.

Do let me know if I can help further,
Sincerely,
Kevin McElhone, Northampton, England