Jams,
You can run coil overs with the stamped mustang II A arms too. Get a grinder and grind about 1/4" around the lower opening and the coil overs will fit just fine. That's what I did for the first year. Go to
www.shellvalley.com and look at their catalogue under suspension. Rich sells the coil overs for the front as well as the upper and lower A arms. Very resonable. He even sells a complete kit a little saving compared to buying them seperately.
http://www.shellvalley.com
Clois