Those are such high scores that your DD wouldn't be any more likely to find an intellectual peer in her neighborhood if you lived in a city versus your small island. In either case, I think you'd have to reach out to gifted-centric activities to find kids close to her intellectually. Hopefully, while I know you said she's struggling a bit now, she can find someone that she connect to on more of a heart level.
Just wanted to say, though, that you connect to her on a heart level and that you seem like you are doing a really great job for her. You should be really proud of who she is and the job you're doing as her parent.
ITA, those are super high scores, intellectual peers would be very hard to find anywhere, even in a very big city.