Trying to figure which headers I need for my project

I am in the process of having my 67 Fastback restomod built. It has the TCI suspension installed, MII rack & pinion front(2” drop spindles)/4-link rear. Going with a fresh engine from FordStrokers, 331. Tranny will be a 4R70W.

Does anyone have a definitive answer as to what headers will fit? I’m assuming most shorties will but if anyone here has this setup or similar I would like to know which headers fit.

Many thanks,
Nail

Doug's says they got a set on longs that will work but I'm skeptical as is my mechanic. . . probably just going shorties and save the hassle.