adamscherubhull.blogspot.com/ -> here's one done by a mate of mine over in sydney when he was building his new cherub from scratch.
It's not actually a hard job to convert to a self-tacker. You need to make a couple of raised brackets for your cherub (alloy or stainless or if you want to spend the dosh, carbon isn't too hard either) and get the track bent - it's a custom order from ronstan, but they do it all the time so it's not too expensive.
Then bolt & glue the brackets to the deck, bolt the track to the brackets and fit out as necessary from there.
