HT Advice needed

[Jairus]

Hi

I am wondering if anybody can help me in relation to HT coverage.
I began receding about 10 years ago ( 30 now ), and it was mostly just frontal loss. However I began thinning on top about 2 years ago. Up until a few days ago, I assumed my loss was solely confined to the top of my head. However upon further inspection I now see it has creeped back even further.

I am on Nizoral and minoxodil but not propecia - tried it a few years ago and its not for me. I have 2 questions - 1. I was told my donor area was excellent, but would like some other opinions based on the pic attached and 2. How much of the thinning area could realistically be covered in one session?

Many thanks

J