Reply To: Using Original Parts
I agree with jdrichardson with the numbering of parts and making them responsible for replacing the originals. Since your principal is behind the push to use originals my suggestion is to come up with some different options fr dealing with originals, like you are doing here, and present them to to your principal. That way they know what you are facing and when it comes time to replace damaged/destroyed parts you may have their support easier. Plus, they may have an idea for collecting money from students.