What headers work, and what don't?

I plan to fix the engine when I do the exhaust swap. I have a stock K frame ready to swap in, just no headers yet. I figure it would be a lot easier to snake headers in with no K frame in the way, just need to figure out what headers I want to run. I was probably going to go with the Summit ceramic ones. $300 for a set of ceramic coated headers is a win in my book (even if they sit low), unless they have major fitment issues with the clutch linkage.