Trying to figure out next steps...

I was supposed to have a transplant with Dr. Bek last week (I'm about a Norwood 2.5, and was looking to fill in the area around my temples and adjust my hairline a little). Everything was fine leading up to the appointment, but about an hour after we started, he stopped and said my donor region wasn't dense enough. This surprised me, but then he explained about follicular units, and how most of mine had 1-2 follicles, which wasn't going to be enough. Like I said, I was a little stunned (my hair has always felt full back there), but I appreciated his honesty and professional judgment.

The upshot is that he re-implanted the grafts he'd taken out, I flew home feeling really embarrassed (I had the shaved head and even a few scabs, but no transplant to show for it...), and now I'm trying to decide what, if anything, I should do next.

I know I need to let my hair grow back. In a few weeks I'll be meeting with a doctor to see if taking oral minoxidil will help improve the density of my hair. (I already take dutasteride and use oral minoxidil -- although I haven't always been consistent with the latter, and I never used it on the back of my head.) Then I guess I have to decide:

1. Do I want to try this again?

2. Are there doctors who have more expertise when it comes to dealing with low-density donor areas?

3. Should I be trying to do this somewhere closer to home? (It felt really shitty to be stuck in a foreign country after the procedure had been called off. On the other hand, doing it in the U.S. will be a lot more expensive.)

4. ...or should I just give up?

For additional context: I'm 39, and before I started taking dut, I was on fin for about seven years. Hair-wise, I haven't lost ground since my late 20s, but by then I was already rocking the M-shaped hairline. I'm not balding anywhere else.

Would very much appreciate any advice that anyone has to offer.

Side note: Bek was very nice about the whole thing. Gave me back 4x my deposit to cover plane fare.