I am setting up a local events website using Events+

I am setting up a local events website using Events+ and a custom wp theme, is there a way that I can use to have users pay to add their event to my site using Events+, or is there another plugin I can install?

Ideally I would like to have users buy packages to enable them to list a certain number of posts in a set time frame (ie a weekly package would allow 1 post per week, a monthly package would allow 3 posts per week for one month, etc).