I'll third that.
Unless you can score them at a swap meet for $50, I'd skip inexpensive units. Any of the cheaper versions all wrap around the drag link and are a pain to install. Sometimes you can find the Hooker 5115 used for a fair price. Dougs and TTI are the best fitting, best sealing, and best looking out there, but you will pay for them. I don't have any experience with any of the shorty or mid length headers, but IMO, those are all only as good as the best manifolds power wise.