Reply to that aussy dude

As far as retail goes if you live in Australia you get 20% off at all of these stores which carry a lot of the above brands:

http://www.firmamentberlin.com/

http://www.acrnm.com/

http://tres-bien.com/

If that's too expensive wait until sales, Visvim and Acronym usually don't go on sale but Wtaps and Stone Island stuff often goes pretty deep and with that default 20% for VAT you could potentially get like 70% off some stuff no problem.

As for second hand / consignment you have a ton of options:

http://www.stylisticsspace.com/ (this will have almost everything you want)

http://foot-mobiles.blogspot.com.au/ (similar to above with a much smaller selection but right up your alley)

http://www.e-g.co/products (worth checking out, rarely updates)

http://www.guyiconsignment.com/ (for rick owens and everything not covered above)

With all of that you could probably find everything you might want except maybe rick basics which I think you can get the best price on from places like superfutures marketplace:

http://supertalk.superfuture.com/index.php/forum/21-supermarket/

Finally all that's left is Ebay and Yahoo Auctions Japan, that site I linked above, Stylistics Space is also a proxy so that guy can get you anything you'd want from Yahoo Auctions Japan.

Hopefully you're not totally broke because I'm too tired to give mass market examples of all of the above but it should not be hard since most of the shoes you picked out are Nike and you can find baggy sweat pants and hoodies anywhere.