I have also found a someone that with ship as little as 6x Pinball machines for around $1200 AUD (not including cost of the pins lol)
10 Pinballs works out to around $1500 AUD for shipping.

Seems a fair deal to me, but I could be wrong ?
The other thing is, how do I trust these people ? If I send the cash will I get the Pins ? are the condition of the pins what they say ? lol

Looks like you are starting to see just a few of the problems involved in an international transaction already. Also add currency exchange fees, "unknown" customs problems at BOTH ends that can add costs.

Dodging import duty/GST is not a smart move long term. There are certainly ways to minimise these costs LEGALLY and I use them for sure but be a bit careful - I have had to explain to Australian Customs & Border protection as well as the ATO what my costing and price structure is and how I determine my invoice price - failure to provide the information that was 'satisfactory" TO THEM would result in them "deeming" what my goods were worth and get this............they use eBay as their main source of price estimation!!!!!! Madness.

When I pointed out the string in my supply chain they were satisfied:

Homepin manufactures product in the Homepin factory Shenzhen
Homepin sells the finished product to my export/import company, Katana Trading
Katana Trading handles the export fron China and the import to Australia
Katana Trading then sells in bulk to wholesalers in Australia
These wholesalers sell to individual retailers
the retailers sell to the public.

The above structure when supplied to the Govt bodies with invoicing along the way then "made sense" to the public servants looking.

Don't think you can bring pinballs in and claim they are worth $500 each (even if that is what you paid for them) as they will simply look on eBay and determine that they are worth $4000 each.

This is just another hurdle to importing.