Welcome to the forum, a great bunch of guys and gals here, just don't bring up imported trailers or dc to dc chargers...oops
Just kidding, best way is actually get out and look over some rigs, most people are more than happy to have a yarn to some stranger in a park about their pride and joy and are pretty honest about the faults and what not.
I own a MDC and have no issues at all, however I am in south east Queensland and that is a different kettle of fish to what you are dealing with.
Nothing wrong with second hand either, there are heaps of hardly used Aussie and imported rigs out there to choose from if that suits you, again spend some time looking at as many as you can before purchasing.
Good luck and enjoy the forum.