Jeep SRT8 Manifolds
I bought the TTI's and they are a tight fit and not cheap but it just goes with any hobby.
I don't know of anyone that has tried them so they may not even fit, but one other option might be Street and Performance.
http://hotrodlane.cc/
On page 160 of their catalog they have a street rod style header for 430.95 and a mid length for 720.95
If nothing else they are good for price comparison.