Looking for obscure 2Gb per stick DDR3 models

[TaPaKaH]

For the last couple of years I've been binning Powerchip and Elpida BBSE based memory, but there are some G.Skill models which I have never seen "in the wild".
So if any of the local G.Skill enthusiasts know an obscure shop or a forum member selling any of these - any information is much appreciated.

Flare DDR3-1800 6-8-6-24 (F3-14400CL6D-4GBFLS)
PIS DDR3-2300 8-11-8-28 (F3-18400CL8D-4GBPIS)
PIS DDR3-2400 9-11-9-28 (F3-19200CL9D-4GBPIS)
Ripjaws-X DDR3-2200 9-9-9-27 (F3-17600CL9D-4GBXMD)
RipjawsZ DDR3-2400 8-11-11-31 (F3-19200CL8Q-8GBZHD)
Trident DDR3-2300 9-9-9-24 (F3-18400CL9D-4GBTDS)
Trident DDR3-2500 9-11-9-28 (F3-20000CL9D-4GBTDS)

(obviously, I tried sales@gskill.com before making this post)