Welcome, Simon!
Where abouts in Sydney are you?
This weekend, we're heading to Kulnura (1 hr north of Sydney) for some observing, and you'll be able to check out a variety of scopes there. Joe may even be there with his LX90 so you could check it out. Humayan (Octane) also usually comes with his LX90, which he does photography with.
It's always a good idea to check out the options first hand, before committing to a purchase. You'd be made more than welcome, so come up and say g'day!
to the site!