Sorry for my ignorance as I am not regularly reading this place, but have you consulted a reputable transplant surgeon? I think you should see 2-3 good ones so you get an overall opinion on what is possible. From what I can see, even that horseshoe at the back is thinning another inch down, you have decent hair calibre but the advanced pattern negates all that. I agree with
@michel sapin says, buzz cut transplant seems like the only viable option, in the sense you spread all the grafts all over including some in the crown and then shave it down with smp perhaps.
I don't think you should have expectation of growing it out. Because you'll still be in bald territory and the bald guy from my experiences in interacting with girls/guys and using common sense. You'll still likely have a receding hairline, diffuse thinning, bald crown and horseshoe pattern being visible, balding donor, also with a layered combover. Even one of those can screw a guy up, let alone all of them. But see a Dr first, once he sees your donor capacity and sees how many grafts there and multis, he can make a judgement. It could be the case you return with a decent head of hair, one of those rare Norwood 6s/7s we see on youtube that do. What's worse than baldness is a odd surgical head that everyone picks up on or looks off in some way so you must be extra careful which some members ended up with and a waste emotionally/financially. You're not a thick Norwood 3 going in for corner building.
Lastly, do what makes you happy though, maybe some hair would help, but remember we get only one scalp and whatever is done is usually permanent. Personally I don't think there will be much cosmetic difference from what I can see if you grow your hair out post hair transplant due to the limited donor and advanced pattern. However, a buzz cut transplant will look good with smp and you have an excellent head shape. But then you may think what's the point of that and the financial/emotional journey just to shave it down. However, some frame may help you even if you don't have hair in the conventional sense, it can often look cool, shaved through choice option.
Think it all through and best of luck. As a plastic surgeon told me, other surgeries give way more bang for buck but transplants are limited cosmetically unless it's <NW3-4 generally speaking.
Bit different to your case but you can see a good transformation here
Same time (even with the same surgeon) there are cases where it goes really wrong even in ideal candidates.
@justinbieberscombover may know some examples of poorish results (but not fail as such) and see how you feel if you had that. If you feel okay and it's better than now, go ahead.
