Replacement 6.5x DCS PBT spacebar for quickfire TK

[gambo]

Hello! I'm new to mechanical keyboards so please correct me if anything I'm saying doesn't make sense! Anyway the spacebar on my ISO Quickfire TK is sometimes getting jammed and I'm hoping a replacement will fix it. Unfortunately there seem to be very few vendors for the 6.5x spacebar I need and I can't seem to find anyone who does DSC PBT ones.

Here are a few places I've looked already:
http://pimpmykeyboard.com/dcs-spacebars-pack-of-1/ (ABS, but they also do DSA PBT which I might get)
http://www.maxkeyboard.com/6.5x-spacebar-cherry-mx-keycap-1x6.5.html (ABS)
http://www.shapeways.com/product/QX9MR88R8/blank-spacebar-keycap-6-5x (desc says: "White nylon plastic with a matte finish and slight grainy feel.")

Would be grateful to anyone who could point me towards some DSC PBT spacebars that will fit my quickfire TK, preferably with cheap shipping to the UK.