The SVT side skirts are nice looking imo:
You might even find someone willing to swap their svt's for your sap skirts. The SVT rear bumper and/or diffuser is interchangeable as well. The SAP parts are expensive and rare, so you might be able to get a decent price for your skirts if you want to sell them.
Also, you can look at the Roush side skirts. I believe they are discontinued but pop up for sale in the bst sections here.