Have a look at my posts in this thread http://www.peachparts.com/shopforum/performance-paddock/342744-w123-racing-setup-serious-questions-within.html ( ignore the original poster ). It can be a more direct route to use racing springs and adjusters than work with stock stuff.

Also look at some oval track catalogs, you can get straight sway bars and spline on arms that might work on the front.