I decided to go a different route with my project and now have a set of Stainless Works (part number CA679WD) Wayne Due headers for sale.
These headers were used for mock up only, are in perfect condition and have never been on a fired engine.
http://www.stainlessworks.net/cart/p...oducts_id=1166
Price - $800 + Shipping
Shipped from Staten Island, NY 10314