I am getting an error while trying to load the Lost Alchemy.  I made the core changes, to the reagent, and basepotion scripts. 
Errors:
 + Customs/_Testing/LostAlchemy/DefLostAlchemy.cs:
    CS0115: Line 86: 'DefLostAlchemy.CanCraft(Mobile, BaseTool, Type)': no suitable method found to override...