Clutch linkage

Wasn't sure which forum to put this in.
I'm putting in a 383 in my 64 Dart. I've been going back and forth between auto or 4 speed. I only will go the 4 speed way if I can run linkage. Don't want to run a hydraulic setup. I like oldsschool. I emailed Brewer's and he said nothing will work. I think if you can run a 10.5" with a small block why not a big block with a 10.5" Bellhousing? I'm thinking the rod from the pedal to the z bar would be the same. It would be just figuring out the rod from the z bar to the fork. And the width of the z bar would have to be adjusted. I'll be running fenderwll headers so plenty of room for linkage.
So any of you skilled people that could shed some light on this would be great.