Going on brown bear hunt outside of US to Romania. Got my 4457 form taken care of and Romanian hunting permit form to bring rifle into Romania. I want to use my keyed locks on rifle case with unloaded rifle and on my separate ammo box not TSA locks. Ammo box will be inside of checked luggage. Checked bag with ammo box inside will have TSA lock on the outside. Should rifle case have my cellphone number on the outside? Already did special baggage form with airline notifying them of firearm and ammo.