This is your best bet as you can purchase and activate all of them with your ID. I forgot there were other questions. The answer to number 1 is yes. Once you have a ticket it can be added before it is activated. It only has to be activated for park entry. The same goes for reservations, Once your have a ticket you can make reservations and ADRs.Yes. I went to the MWR today and went this route. I just don’t want to risk it. I’d rather pay the delta (military salute to DoD) than get there and have an unusable ticket.
I’ll leave the other questions on here (except for #3 - I just don’t think it’s possible) in case someone has an answer and can use the info later on. Thanks everyone!