Trade NEW headers for manifolds

I would like to trade these headers for some HP 68-69 big block manifolds. Manifolds need to be excellent condition. No cracks, warps or breaks. These are NEW Dougs D451 headers. They have very light surface rust from sitting up just around the flanges.

Here is the info on them.

http://www.summitracing.com/parts/dou-d451-r/overview/