As I understand, Wolf sprite in the prototype project has the same instance variables and behaviors as the Enemies family in the main project? In this case you can create a new blank project, copy Wolf sprite to that project, remove all variables and behaviors from Wolf sprite, and then copy it to your main project. Add it to the Enemies family, and then you will be able to copy over all events from the prototype project.
Also, check out this tutorial from Ashley:
construct.net/en/tutorials/upgrade-object-family-319