Okay,don't laugh,I'm serious.
Have you ever tried duct tape on the springs?It works,and passes inspection at places that don't allow clamping of the springs.Just wrap the springs so that the tape is about 1/2" thick.It will take a couple of rolls ,but I have seen the spings bend right at the end of the tape,so it does work.My current demo car has taped springs.
Denny