Try brousing the classifieds. Lots of SVT suspension parts in there. I've been looking myself.
The only parts I know are springs/struts and sway bar(Might be better of with Aussie bar). I'm sure someone else knows what I may have missed.

edit:
http://www.contour.org/classifieds/classifieds.cgi?t=1&c=5

I see two adds for all three parts. One add wants $150 for the springs/struts and $50 for the sway bar(60000miles) The other has no asking price but only has 20000milles on the set.

Ryan French

98 Mystique Duratec Sport(KKM, Custom Exhaust, debadged/dedinged, Tinted, A4 sidemarkers(clear), Bodycolor grill...Suspension is next.)

00 ZX3 Zetec Limited Edition(nothing)