How can I get access to a lounge when I have no gold status and flying economy with scoot and KLM from SYD-SIN-AMS?

How can I get access to a lounge when I have no gold status and flying economy with scoot and KLM from SYD-SIN-AMS? Thank You in advance

In SYD you have the delights of the public terminal, in SIN there is the pay-entry Ambassador Lounge. 

Actually, in SYD I believe the Air NZ Koru lounge charges $40 for a paid entry.

Thats only If you are flying Air New Zealand, Virgin Australia, Air Canada, Air China, Asiana, Thai, United, Air Mauritius, China Southern, Delta, Etihad, Hawaiian, Korean Air, Philippine Airlines, and Virgin Atlantic

Plus it now costs $55 for up to 4 hours and $85 for plus 4 hours

See http://www.ausbt.com.au/pay-your-way-into-air-new-zealand-s-australian-nz-airport-lounges

Consider signing up with www.prioritypass.com for worldwide lounge access.

If you happen to have a Platinum AMEX card you get free membership and two free lounger visits per year.

There are no Priority Pass lounges in Sydney. Only Cairns and Melbourne for Australia

All air New Zealand lounges have a pay for access entry rule .google paying airport lounges sydney. Hope this helps 

Foregot to mention air NZ charges $43 for entry for up to 4 hrs