Customer needs utf8 unicode 520 ci

I have a single customer that needs utf8 unicode 520 ci to work for his databases. I found one thread here that listed this tool: phoca.cz/documents/38-tools/154-how-to-change-collation-in-database It's old though. Is running this script to change the database the best way to have a single account be able to use utf8 unicode 520 ci for it's database?