Are you still working on this? I saw a rather wild system for clutch actuation in a rat rod. The designer says he got the idea from an old 1970's Cadillac tilt/telescoping column system. HIS steering column/system when pushed down disengaged the clutch and extending engaged. He found that the 1994? Mitsubishi 3000GT used a small vac booster for the clutch master cyl(like a tiny brake booster). The designer used the splined tube and splined shaft off a small tractor PTO drive shaft as his steering column shaft with a steering wheel hub welded on top! On the upper(tube) half of the steering shaft he welded a throw out bearing. Then he used the clutch fork and pivot ball off a Toyota manual trans to actuate a push rod(the same system used in the bell housing) going into the 3000GT clutch vac booster and clutch master cyl. (He wore a 5 point seat belt to hold himself securely into his seat! He said it made the pushing and pulling of the steering wheel smoother.) Total movement of the steering wheel(in/out) was less than 3". I wish I could claim I thought of this!, but I only witnessed it.
Where there's a will (or a wheel?) there's a way!
Also FDR,(yes, that FDR) had a 40(?)Ford convertible that was modded for him to drive. It had a lever arm about 3' long that pivoted on the floor just inside the driver's door. It was usually up by the dash. As he pulled it back it eased off the brake pedal and sequentully let off the clutch pedal. I saw his car at his Little White House Museum in Warm Springs, GA.
I've taught many people to drive manual trans and I always told them "Don't Cry! It's just that we live in a fickle universe, If we were shaped like octopi with 8 appendages Cars would have 9 Pedals!"