Another header questions... Sorry

I never thought the Achilles heel to an early A build would be headers.

I have a 1966 Cuda with a 360la and a 727 trans. No power steering. I thought the Dougs were an answer but not with a 727. I have seen different "facts" about TTI's and spitfires etc.

What are my options? I am prepared to do fenderwell headers if need be. I am prepared to spend $900 if need be (sell one of the kids I guess). I currently have the exhaust manifolds that were on my 73 360la out of a motor home. I'm afraid I'm going to leave 15-30 hp in the engine if I use them.

Out of all the twists and turns to building "Betty" this has been the most frustrating.