hard case bro, because you are really diffused , there is a huge risk of shock loss .
I am not a transplant expert , but I think you should give fina/minoxidil a try first
I tried fina - for about 2 years -didn't do anything tbh.
I would try dutasteride, minoxidil and dermarolling for a year first before contemplating a transplant.
4000 for starters