Man, y'all had to blow the dust off this thread!
EvilC, I think what I ended up doing with my front end is similar to what you've got planned. I started with late 1303 control arms, and added a triangulating member that connects to the frame head with a 13mm heim joint. The sway-bar is no longer a structural member of the front suspension, so I connected it to the control arms with drop links. By screwing the heim joints deeper into the triangulating arms I fabbed onto the stock control arms, I can increase caster.
pics and such from another thread Pictures of the completed arms are a couple of posts down the page.
The difference in driving the car is noticable. The steering is much steadier under hard braking.