Hi and welcome
A couple of things. Firstly, be careful buying from US. If you are buying from a genuine Meade dealer, they usually will not ship to Australia, so you may find you are buying from a unauthorised dealer, so you could find yourself on your own as far as warranty is concerned, or if the scope or mount get damaged in shipping. Local resellers may not be keen to assist in these cases. Also be aware that you will probably have to pay duty/GST to get gear through customs, so price may not be significantly cheaper.
I am not in a position to comment on the mount, although I can make this observation. The LXD75 mount is one that I have not seen being used at observing nights. It certainly is virtually unknown as an imaging mount.
Can I ask what factors are influencing you to look at this setup and what you are looking at doing with it!
Malcolm