Indeed, just unsolder the leds, and pry that sucker out, and slap a K2 in there... The grin on your face will say a thousand words after you're done. :devil:
Same beam pattern (not quite centred though...), I'd say 50/180 lumens, a nice neutral white - 'clear' comes to mind - warmer than either a Cree Q5 WC or GD+ and missing that green tint the LuxIII had on low.