This is exactly what Rob Grady's car is running. Prototype, triangulated LCAs from Legend Industries. Basically an upper control arm that has been cut, and then welded to a cut lower control arm.
See photos here:
http://photos.grenexmedia.com/Events...al/i-MvpQfff/A
http://photos.grenexmedia.com/Events...al/i-j2ZVWkP/A
http://photos.grenexmedia.com/Events...al/i-272F3NT/A
http://photos.grenexmedia.com/Events...al/i-d3465Sb/A
http://photos.grenexmedia.com/Events...al/i-6Jp3CwK/A
http://photos.grenexmedia.com/Events...al/i-tMD38N9/A
http://photos.grenexmedia.com/Events...al/i-rLKmQpV/A