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.