the QFP has non-standard modifiers (spacebar row keys) and hence requires the tsangan kit that has been available through various geekhack keyset groupbuys from signature plastics (SP). Your options are the red on black ragnarock set, CCnG, RA2.0, the current pink & white, and possibly others I am forgetting. And you will also need the separate number-pad keys.
I think the QFP uses a non-standard 6x spacebar (I could be wrong) so you may be stuck with the original black spacebar, which you should consider when buying any keysets.
The SP groupbuy keysets are in high demand and occasionally pop up in the classifieds section but always sell very quickly. Tsangan kits are in especially high demand right now due to the recent influx of custom Korean keyboards, and there is currently an interest check for getting more tsangan kits produced for the various sets mentioned above. Good luck!