1) Although, from reading the words of wisdom posted by a multitude of "car guys", one would not know it, measurements using actual numbers are very useful. If you can determine the finished length, using specific points on the front of the shaft in particular, others can measure shafts that they have on hand. Someone may have a match.

2) Is your drive to Sac northbound, or southbound? Stanislaus County has a good shop. Valley Balancing and Machine.