Now I have to admit that this project has become waaaaayyyyy more involved then I ever wanted it to get. Not having all the high end fabrication equipment, and experience does pose it challenges. Plus the fact that my welding looks like it is put on with a sling shot, adds to the challenge.
So I had to find a way get a set of headers made the way I WANTED THEM. So after a lot of web surfing I found this place
http://www.stainlessheaders.com/customheaders. They make headers in any shape you want.
What they do is send you out a mock up kit consisting of all kinds of PVC fittings and these trick universal fittings that can bend in all kinds of different angles. Also included in the kit is a set of mock up header flanges, collectors, and some bungs for attachment. Heres what came in the box.