Good Luck. From the sounds of what your daughter is telling you she sounds like she is in a good place. She’s planning her trip there. That’s awesome. Maybe confirm with her local therapist again if you need to.
My son did France this summer with many kids from his school and many from another school and country. They were able to plan trips in groups outside of what the school planned. Think of it as 10-15 kids going to Brussels and Amsterdam in his case. He is not Mr social but getting much better and had a great time with his roommates and classmates. He doesn’t really drink but he had a beer or wine when going out. Don’t know if she drinks but she should understand her limit since she is medicated.
The only time he wasn’t really in a group was when everyone wanted to go back and chill and he still wanted to go see another art museum. So he did that by himself. All those trips to the Art Institute in Chicago paid off… Lol…