Auto to manual conversion

The basics are a transmission tunnel "bulge" to accomodate the shifter, the proper shifter and rods, the proper A body box, the proper bell or scattershield, proper flywheel and clutch, and proper driveshaft, and of course the pedal set and linkage

Not all pedal sets are created equal. There are some threads on this. The "throw" on some of the HP cars are better than the /6 pedals.

Be aware of the overdriven 4 speed, the older one with the flange drive for 64 / earlier, and the proper shaft length for an A

There are differences in bells over the years, and you do NOT want a truck/ van bell. You want an "A" body bell although some guys I guess have managed to use a B body bell

I've always been a "stick" guy, but I'm 73, and my legs ain't what they used to be. Otherwise I'd have a stick.