You have a resource at the vet school in Knoxville. If your local vet isn't comfortable with dealing with your situation, she/he might be able to work through the vet school. Often these cooperative situations involve phone consultation and can involve the specialists, local vet and trainer.
One opinion on training. Some "old school" training techniques involve flooding where the offending stimulus is pushed on the individual and another involved physical intimidation. Both are thought to be the least effective (and least humane) methods.
With this in mind, I'd avoid forcing your dog into situations where fear is shown.
General obedience training, teaching to sit, stay, come, etc. can produce a confident dog that looks to you for clues about what to do, rather than panic with the fear.