BTW I don't remember my clutch cable bracket coming down to the boot like yours does. Can you flip that thing to see if it gives you more clearance? You might have to loosen the clamp at the stabilizer bar(if that's what it's called) at the bottom of the cable in order to flip the braket and or adjust clearance.
LMK if you want my old boot. I just looked at it and it's in pretty good condition. No cracks no tears