I'll create phpBB forum for you. I can install styles, plugins and additional modifications if you want. If you have an existing forum, I can help to install any modifications.
I can also customize your template according to your needs.
Note that, phpBB doesn't allow you to install mod/style from Admin Panel. Therefor you must provide cPanel Access if you want me to install any mod/style. However If you provide FTP access, then that will do too.