Want to restore temple area - how many grafts do I need? (photos)

Hey!i I've been experiencing hair loss for a few years (started noticing it at 22, I'm currently 25) and am looking into potentially getting a transplant. My main area of concern is restoring my temple area which will hopefully give me back a hairline. Roughly how many grafts does it look like I'll need to have a good natural looking result for my temples? Thanks a bunch for any input!