Hi there Gabriel,
I like your 'Friends Only' plugin's process.
Sorry to contact you here but I haven't found other information to send you a private message. I have bought on Codecanyon a Coming soon plugin. I'm looking for someone to customize it to run exactly like 'Friends Only'. I've made some screenshots to help you to understand what I would like.
Tell me if your are interested and please give me an email address to send you the whole proposal.