Seeking advice on 2nd ht

[Rob215]

I had my 1st HT around 7 or 8 years ago ( can't remember how many grafts ) with Dr. Pistone. I'm guessing the results I have look very minimal since I was still young at the time and probably have lost more hair over the years. Now that my hair loss seems to be a little more stable I am considering a 2nd transplant most likely with Dr. Pistone again. My first priority is to have thicker hair, but am also considering lowering the hairline a bit. I have posted pics, and would like some opinions on how many grafts I should get, whether or not to lower hairline, if I would need more than 1 procedure, possible price range I would be looking at, or suggestions for other Drs.