给父母办理来澳洲一年期签证所需的health insurance

最近想给父母申请旅游签证过来，但是想申请最近推出的那种五年有效的签证，这次来想申请他们住一年。这就要求必须要给他们办理health insurance，我看移民局官网上说最好是澳洲的insurer但是知名的海外保险公司也可以（英文说明如下）Health insurance policyIf you need to have health insurance while in Australia the health insurance policy:

can be with any Australian insurer or reputable overseas insurer

doesn't need to be with a specialist health insurance company

can include an excess and standard 'pre-existing condition' clauses

must be fully comprehensive (that is, it must provide at least Medicare equivalent cover including hospital, emergency, general practitioner and pharmaceutical benefits.

It is preferable that your health insurance is held with an Australian insurer but it can be made through a reputable overseas insurer which provides the same level of cover.

现在我就不太明白该联系哪个保险公司，而且能保证他们的险包含移民局要求的内容。也不知道国内的太平、平安等我们认为的大保险公司是不是在他们的许可范围。想请问有经验的朋友你们是如何为父母办理1年期的health insurance的呢？费用如何呢？具体是怎么样办理的呢？我本人是想从澳大利亚给他们递交表格的。多谢了！！
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