Is there a decent single exhaust kit out there for a Slant?

I bought my first Accurate Ltd exhaust system for a 340 Dart in 2000 when I lived in Virginia. I was shocked when it fit perfectly - no beatin' no bangin', no tweaks needed. 5 years later I was on a work trip on I-5 in Oregon when I saw the exit coming up for Roseville and I thought - that's where Accurate limited is, so I pulled off, made some calls and went to see them. I was telling them how impressed I was with the fit of their products, and they offered to show me their secret. In the adjacent shop were three lifts. One with an A body, one with a B-body and one with an e-body, along with various blocks, heads and exhaust manifolds. When you ordered a system it was fit on a car, not produced from a card with instructions for bends at various degrees from 360. Of course they fit!