how will this combo ride???

What springs do you have now? You want to match your springs with your shocks. I would personally buy Bilstein's for ride comfort. I know from experience. A Mustang will never ride like a Caddy and give you good performance. I recently installed the combo in my sig, and I can tell you it is a better ride than stock and it handles pretty good. I have heard KYB are rough riding shocks. Koni are great, but more of a race oriented shock, which from the sounds of it, you are not looking for.

I have the FMS "B's" with KYB GR-2 combo. It's no Caddilac, let me tell ya.

If I were to do it over again, I would purchase an adjustable strut/shock combo.

The Foxes are notorious for having a stiff ride overall, don't forget...