I just installed a new toilet at my grandmothers place. We decided not to go with the dual flush on the new more water efficient toilet. I think its a 1.28 gpf. I'm really not even sure I could easily install it with its flushing mechanism. The conversion kit is probably only about a year old. It comes with everything you need minus the black rubber ring (which I haven't needed on any of my installs of this kit) and some zip ties.
Gasstingy wrote up a good review and install instructions here:
http://ecorenovator.org/forum/conser...onversion.html
So, its free to a good home (please only reply if you can actually USE it). I'm not looking for any money, but you'll have to pay shipping on it.