The black vinyl version is still available as an exclusing through the band's webstore, still at £40.
I have parted ways with my black vinyl ones already, I have only kept the grey vinyl one (a gift from the coolest and possibly most elusive member of this forum!).
Both tracks are available on the special editions of BWP. Both amazing tracks. One of them was also available on a MFN promo CD too, although I cannot remember which track now. The CD was called "Futures" from memory, it is around here somewhere too.