Hello Dan,
I am the one you are looking for your project.
All my skills can be seen if you view my profile, section Resume and Exams/Skills.
Inviting too many friends at an event might result in spam reports and your profile might get suspended or closed.
The good way to do this, is if you have their email addresses and a Facebook Page with your events. You can use Facebook Ads to target them by emails. For example, either collect manual their emails, either if you have a website that uses newsletter from which system you can export the email addresses to a CSV or TXT file.
I look forward to hearing from you.
Kind regards,
Andrei