Notary Services Required!

Hello all

I am trying to get some documents certified originals for use outside HK. Is there any notary services that cost less than HKD900?
It can be done by the following authorities

Thanks!!

Notaries Public;
Solicitors, Barristers or Judges currently registered to practice in Australia or your current country of residence;
Justices of the Peace - authorised in Australia or your current country of residence;
Managers and designated officers of Australian Banks in your current country of residence;
Australian Registered Accountants (i.e. members of ASCPA or ICAA);
Registered Doctors and Nurses in your current country of residence;
Certified Public Accountants in your current country of residence;
Registered migration agent (whose registration is not suspended or subject to a caution).

Might be too late, but the Aussie consulate can do it for less than that (per doc):

http://hongkong.china.embassy.gov.au/files/hkng/SRVAU_Fees_20170201.pdf