You can get just about everything for control line from www.brodak.com Go to the competition rules on the AMA website www.modelaircraft.org and look for the control line general section. There will be a description of how to wrap the lines. Use this method at the bellcrank. There is a control line club in St. Louis that flies at Buder Park. You should be able to find contact info on the AMA site. I bet those guys would be glad to help you.
Chuck