I may have jumped the gun

[Willis90]

Hi, I'm 27 years old and I've been very keen on getting a hair transplant for the past two years so I've decided to have one at the end of 2017. Flights to Turkey have been booked and I am intending on going to AEK clinic for Dr. Ali Emre Karadeniz's service. I'm committed to having this procedure done, however I want to get a realistic idea of what my expectations should be. I'm worried that I may have jumped the gun because it has only recently occurred to me that I could easily not be a good candidate for this procedure. I would like some advice on how far i can bring my hairline down while conserving enough graphs for those future hair transplants. I'm afraid I will ruin the look of my hair in the future. My family has a history of balding. Also, can you tell me what my father and I are on the Norwood scale?

I have attached pictures of my current state and my father (grey jumper) who is in his late 50s.