'68 Barracuda K-Frame

I have never paid more than $20 at the self serve yards here in California for a k-member (it's actually a flaw in their pricing, but they're all the same). I don't know what the yards near you are like, but it's worth a look. Any 68-76 V8 a-body can provide you with a k-member that's easy to use for your application.