Roger,
Good news and your stab beef-up should really work well-much better than an Asian manufacturer of turbine jets. For the static balance, Olnico adds enough weight to the root leading edge to balance- and then removes about 20% of it. Example, add 10 grams to neutral balance and remove 2 grams for the final setup. The e-Dynamax fan should work well in your Hornet. There's plenty of internal space for those 12S Lipos for balance. Again, good luck with your project.
Art ARRO