With hydroboosted brakes on my truck all you need is to gently set your big toe on the peddle to stop... well that may be a slight exaggeration but they work very easily with very little travel or effort, and aren't to touchy either.
I'm 6' and have no trouble leaving my heal on the floor and pivoting my toes over to depress the brake.
However my Father who is also about 6' complains about having to lift his foot to find the brake pedal.

The clutch isn't a problem.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-