Clip On Aeros For Flat Bars?

Want to put a set of aeros on my FSA K-Wings, which are flat.
The only options I see are Oval Concepts and Profile Lightning Stryke. You change the stem and they mount into the stem and not on the bar. Only problem is they dont seem to be available anywhere. Anyone have any other solutions besides putting a new round bar on? Thanks

The Oval Concepts option is available on Ebay.

http://i.ebayimg.com/20/!BUm!b8QBmk~$(KGrHgoOKj8EjlLmVnm)BKOS5,w-h!~~_12.JPG