Ok following on a couple more pics
As you see on the 2nd pic above, the frame tube protrudes past the weld, you only need to take the tube back to the edge weld which means it doesn't affect the structure of the frame.
This only gives a slight clearance but it is enough.
As Dekker said put the pinch bolt into the lever and push the lever on the gear shaft as far as it will go and tighten the bolt up.
It didn't take long to do but I ran out of mini grinding stone so will tidy it up at a later date, Just need to test it out now