I personally spent some time trying to get signed up with Alcor, and eventually gave up in frustration. I understand they have also had some funding issues of late. I do not have great confidence in their ability to remain operational over the next few decades. If an organisation that looks competent and reliable could open a facility in Australia, I would feel much safer than if it were something arranged to send me off to the US.
That said, I'd be a lot happier with either option than with the current state of affairs.
I pushed all the way through. I'm signed up with Alcor, but feel very much as you do about how hard signup was, and how unlikely it is that Alcor will survive very long. I know only one other Australian who tried to sign up, and he also gave up in frustration.
(I've tried to volunteer my time and efforts to Alcor, and they can't organise enough to accept my help.)
Potentially of interest to my fellow antipodean LessWrongers. Stasis Systems Australia is a company seeking to start a cryonics facility in Australia. Their website is pretty sparse, but they just sent out a mailing list update on how they are going, and it doesn't appear that the information therein is located in any news section of the website, so I thought I'd post it here.