If youre not fully happy, and you're not too far into your island, I would reset.Restarted a few days ago because I decided I really didn't like the blue airport for my spooky island.
Got an orange one, which is exactly what I wanted immediately. :>
Sadly didn't get the biggest peninsula, so I can't put my campsite on it as I wanted to, so I MIGHT restart again and keep trying to find the perfect map, but not too sure yet. I have my main island ready for the update tho so I'm not concerned about hurrying.
Resetting to get the perfect map was one of the best things I did in the game.