How much are you looking to shorten the control arms by, Jon? Even though flipping your existing camber plates didn't yield enough camber change, would switching to a different camber plate (and/or camber plate mounting inside the strut tower) be an option? That might be cheaper/easier than redesigning the control arms?
Looking at your pictures from Nov 8, 2012...it doesn't appear that reverting back to OEM LCAs is a reasonable option, is it?
As another option for consideration, what about altering the inner mounting points for the LCA? (i.e. relocating them further inboard?)