28 years old, male, what kind of Norwood can I expect to be and is FUE the right choice? (photos)

Hello 28 y male. blonde/red hair. Hairless min. 5 years. My father has some hair left on top, is likely a Norwood 5 but isn't completely bald. Have never been on any drugs against hair loss besides coffein shampoo. Since hair in the front is still pretty dense, is a hair transplant too earl?yWill it cause them to fall out too and I would have to do a second ht? How many grafts would I need? Is the donor area good or bad? Max. Grafts ? Should I wait till the hair loss is more obvious ?