Early A V8 Headers/Exhaust

Hello All,
I'm building a 65 Valiant 200 2dr post. Putting in a 71 340, 3.510 stroker crank, forged pistons, 587 heads with stainless valves and a bowl blend, electronic ignition, 68 carb and intake. The trans is going to be a completely rebuilt A-833OD with Hurst linkage. The rear is a 8-3/4 3.55 SG. I'm running power steering, dealer power disc brakes and factory A/C. My question is regarding headers. I've seen Doug's headers, TTI headers and a few odds and ends out there. I've heard block huggers won't work on the driver's side, and occasionally TTI and Doug's have fitment issues but I really want to hear from those of you who have been there and done that. Meaning actually ran a 340 with a 10.5" clutch housing and installed the header exhaust system. I would like to run TTIs headers with an X pipe and 2.5" exhaust system but if it means beating up my fender wells and cutting up my frame, I'm not going to do it. I don't want to cut/modify the body of the car. I do have a modified dual exhaust cross member to use and I'm not opposed to cutting a little on the bellhousing as it's an OD bell with a 10.5' clutch. I'm also not opposed to moving a brake cable or line. I'm looking to those of you who have done this and hear about the issue you've had before I pull the trigger and spend the funds. Finally, I've heard 340 Hi Po Manifolds can work with some creative exhaust work on the driver's side. What are your thoughts? Thanks for your time and help. -Frank