I'm sure that many will disagree with this but as a previous shop owner(in NH) some times it pays to swallow your pride & take it where they have the correct tools & knowledge to fix things correctly. People will say- I don't have the money but a reputable shop will give you an estimate. I had riders(mechanics) that specialized in every field & sometimes the fix can be done in almost NO time! My .02.
Irish
P.S. Your problem has probably been heard 100 times before. The people that work there do this at LEAST 8hrs a day!