Headers Suggestions?

I wanted to get some exhaust headers for my 65 dart gt, 273, but the only ones on summit are at least $600.

Am I just crazy to hope to be able to get some decent headers for less than that? Or can you guys throw out some suggestions of other brands/places to check out for headers. I want to go dual exhaust down the road.
I plan on going with a set of these.
They are like $150 cheaper uncoated and just painted. But I'd rather have coated8)
http://www.summitracing.com/parts/HED-78506/?rtype=10

But just like you, it'll be down the road a ways