First, welcome to the community.
I suggest you use both finasteride and minoxidil consistently for at least 1 year to gauge your progress and hopefully at least stabilize your hair loss. I would then consider surgery and I suggest 3000 FUT grafts. You can get more grafts via doing a few sessions of FUT and then going for FUE.
Regarding scars...it depends on the patient characteristics with respect to wound healing, scalp laxity, and the skills of the surgeon. Some surgeons, such as @Dr Blake Bloxham have FUT scars that are basically invisible.
As always, feel free to reach out anytime