I badly want this small case: http://www.avadirect.com/product_detail ... PRID=18901
or similar slim that can hold full size gpu.

can be used one... but can't find any seller

What rough Location, or does shipping not matter ?

Shipping not matter, just can't find a seller.
And location is Lodz city, in Poland (so it would be better to find EU reseller, but it's not necessary).

My gut feeling is that you're never going to find that one from a retail vendor. It was originally around about 5-6 years ago and is probably long gone by now. Your only chance would be finding an old used one for sale somewhere.