I recommend you to have a FUE operation with 1700-1800 grafts. Although the area is large enough to get 2000 grafts , vertex dense implantation may not result expected density because of surface geometry. Hair transplantation would cover all bald spot in vertex with one session of operation and you would have a good/ "enough" result
I usually measure the area to determine the number of grafts, and on a crown, I suggest 40 to 50 grafts per square cm depending on the patients hair type. Since 1200 grafts would only cover 30 sq cm or an area 5 cm by 6 cm at most, I think you need a lot more grafts than 1200 for good coverage. Have your doctor measure the area and ask him what density he hopes to achieve. Based on this photo, you need 2500 plus grafts for adequate coverage.Dr. Robert Jones