Reply to "cockpit space"

All Panteras as-stock, are the same interior size. But there are in fact some things that can be done short of surgery. First, the floor pans can be dropped a max of 2-1/2" for more headroom.
Second, if its simple leg-room and not your torso thats the problem, the pedal plate visible in the front trunk, can be spaced into the trunk up to about an inch using a custom spacer. Since this moves all the pedals, I suggest you proceed slowly as brake lines, power booster hoses and the hydraulic clutch are all involved.