Headers, I mean long tube headers, are good if you're willing to make the trade. That trade is that you'll be getting the best possible exhaust performance-wise in exchange for some significant headaches in installation, maintenance, fitment, and longevity. It doesn't matter what brand --- they *all* have these problems in various degrees. The significant differences are in performance. Sadly, what's best for performance is usually worse for the other problems - that's just the way it is. I'm running headers on my car, and I just deal with the issues. I had to relocate some of the brake system components, alter the backdrive linkage (steering column lock), and when it's time to rebuild the passenger side lower control arm the header on that side is going to have to come out in order to get to the bolts.
If you're willing to take a small step down in performance in exchange for almost none of the other problems, then nothing beats a *good* set of repro Ram Air manifolds.
Unless there's some difference in pre-67 heads that I don't know about (I'm mostly a later --- 350/400/428/455 --- guy), they should bolt right up. The vendor who makes probably the best quality repro parts, Ram Air Restorations, would know the answer.
I wouldn't bother with shorties. You'd be going through some of the pain of 'real' headers without getting the benefit.