What would you do? (65 dart headers)

I'm inching closer in my 360 build. I'm picking up the short block from the machine shop next week and will be ordering some RHS heads from Brian and IMM that flow 271 @.550.

I'm going to be in the market for headers very soon and want to keep an eye out for good deals. I have a 65 dart with a /6 K-frame using schumacker v8 conversion mounts. The car has power stearing at the moment as well. I'm thinking the only thing thats going to fit is fendewell headers? (which I have no problem with using)

Am I right thinking that only fenderwells will fit or will TTI's or Dougs fit with the power stearing box? Anyone have an experience with the this year car and k-frame/engine mount setup?

Thanks.