What you are suggesting is theoretically possible- to remove all of your donor and use it for transplantation and use SMP to color the donor area. The reality however is that you will not achieve the density on the top that you are demonstrating in the photos through transplantation, and the...
Yes, we often do eyebrow and scalp hair transplants at the same time to achieve those results. See the video link where I performed eyebrow transplant surgery on Netflix series "Celebrity Plastic Surgeons of Beverly Hills."
The scalp will become normal if you are patient. The spicules of hair that you have will eventually shed. I actually believe that they will shed soon as the direction of these hair are very irregular and appear to be ready to fall out