Greg, coming from a guy who drives a 32 ford with 3 pedals, I would think you would be the last person asking about foot room!
The pictures skew the sizing of the actual floor. The stock 69 Camaro in our shop has 20.25" from the trans tunnel to the kick panel. This car has 19.75" measuring from the same area. It shouldn't be an issue only losing 1/2" of foot space.