Clutch Spring Installed Correctly

Sometimes, you can not just bolt parts on, things change. Do what you have to do, get your geometry correct. That means cutting, adding, or subtracting and weld it back together.
Make a tab that will bolt on with your z-bar bellhousing bracket for the return spring. Change the angle of the exh pipe, whatever it takes. Is that the correct clutch fork and pivot ? Looks short. Plus, no info on what it is.