Hard to say from those pics because I dont know what your hair density is (hairs per cm2).
My guess is you're probably close, around 4,500 to 6,000 grafts. Somewhere in between.
It depends if you wanna do your crown or leave it alone.
It also depends how high up you wanna do your hairline.
Some guys are perfectly happy leaving their crown alone, and looking from your pics you dont look to be a severe Norwood 6 (somewhere between a NW5 and a NW6, although its hard to tell from just a few images).
You also have good lateral humps, which will decrease the amount of grafts you need midscalp.
All in all I think you'll be a good HT candidate.
So life is good, dont jump off a cliff and kill yourself just yet