I am just saying, my opinion - if you're a diffused thinner and you go down the transplant route, you might as well go all out like you're slick bald and disregard your native hair. WHY in God's name would you rely on the idea that your native hair is going to be there forever? It WILL be gone eventually.
In your case, yeah go for it. IF you have super strong donor, IF Manage your expectations and IF you can be happy be a thin head of transplanted hair, do it. I am considering this myself.
I mean to be fair, my ol man has been bald for about 20 years now, he's not fully slick bald he still has hair and surprisingly he still has hairs along his frontal hairline and around the crown, so hopefully I follow his genes as to how far I progress and not my uncles who I'm genetically predisposed to who are fully slick bald!
I mean I think anyone going for a hair transplant needs a realistic expectation, they will be lucky to get a full head like in their teens I know my hair will never be like that. I've been using fibres since I was 20 and if I can get some density back where I can go back to using only a little I'll be more than happy with that result.