Bushwalk Australia

Hi,
Looking for a second hand down sleeping bag for alpine hiking, something like an older One Planet, Paddy Pallin or Mont would be ideal but open to suggestion. I'm 181cms tall. Hoping to find something in the $200-300 range.
Thanks, Adrian.

White season or the other one?
Do you already have a suitable mattress system so that a quilt might be an option? How much weight are you prepared to carry to save money?
$300- is not much of a budget for snow unless you are prepared to carry more weight, say a 2 kilo bag. Sleeping in warm clothes as part of your system?
I'm trying hard to reduce my stash and I might be able to assist on the heavier side with some of my home-made/home altered stuff