Your neighbor has the right to cut limbs off trees that hang onto his property even if it kills your tree. He also can paint anything that is on his lot, including your cedar fence. A well-meaning fence expert is not your best source of legal information although it is cheap. You might need an attorney. If the lawyer won't bid your fence project, I won't practice law.
Most surveyors charge by the hour.
Find one that has worked your area and, if you are lucky, he has just surveyed near you and it will save you a ton because he doesn't have to do any research. He can start from a known location. Sometimes you can locate your own property pins with a little detective work. Check your lot size. If you don't know, you can get the information at your county courthouse.