Re: convert theme
@pakhermawan that would certainly be an interesting project. Install BP Template Pack plugin and follow instructions on screen. Some BP Codex articles might help you along the way:
https://codex.buddypress.org/theme-development/wordpress-to-buddypress-theme/
https://codex.buddypress.org/theme-development/bp-template-pack-walkthrough-level-easy-2/