Where did it break? Is it just the wire that's soldered to the spring/strap, or did the spring break?
Exact configuration of the dag ground wire is not important. What is important is that whatever you use is firmly held against the tube to make contact with the conductive coating on the bell of the tube. And it must be connected to the neckboard. Some monitors don't have that kind of spring, but instead use a series of metal fingers from the frame to the tube.
-Ian