You didn't say anything about an IFS, so you probably have a dropped axle front end. SAC Hot Rod, Orange CA, has these sway bars for dropped axle cars in stock. Their phone number is: 714-997-3433. Their web site is: www.sachotrod.com

Sorry to say, a sway bar is a spring (torsion bar), so it needs to be made of spring steel, and stainless steel just doesn't have the right properties to make a good spring. If you want it shiney, you'll have to chrome plate it. There's no such thing as a stainless sway bar.