where to start?

Lowering Springs.
After Market PREMIUM shocks/struts (Ford Bullitt or Tokico, Eibach, etc.).
New eurathane bushings, spring seats are a good idea if the originals are worn.
Caster/Chamber plates if lowered more than 2".
Bump steer kit, but not really required.
Steeda X2 or 3 ball joints if you really feel you need them.

Put it on yourself if you have the means, it isn't hard at all, just time consuming. Then get an alignment after you lower it. Some will tell you to drive around for X amount of miles, but that is BS. Just take it in right away, it only takes the springs 15 minutes to settle.

If you want to pay someone, expect to pay anywhere from $400-600 (in NY state) from a franchise, or find a mom and pop shop.

GT sway bars are a good fit for the V6.