I have one for sale, modded with 12mm FET driver and nichia 219C 70CRI 5000k on 10mm sinkpad. It makes about 800lm and the heat is immediate, a true keychain rocket 
However I’m afraid it would be too expensive sending it to your location…
Details here: What did you mod today? - #634 by will34
First I used the 219C on the stock mcpcb but it turned blue within seconds, then I reflowed it into the sinkpad and it works great now. I plan to upgrade the LED to a 219C 90CRI 4000K.