Need help finding appropriate Paypal plugin

Hello! I’m running a wordpress for a local charity: The Eastern Shore Pink Bra Poker Run. It’s an event to raise money to send to H.O.P.E. (help for oncology problems and emotional support) which gives support, food, and other necessities to those suffering from cancer and their loved ones. Registration is available on the day of the event (September 27th) but we would like to set up pre-registration via Paypal on the website. I’ve been looking through the Paypal plugins for something matching what I want, but a lot of them aren’t very descriptive or you have to pay to use any of the more useful features. I was hoping someone could help me pick out the plugin to use, or let me know if I’ll have to make it from scratch. I could do so, but my knowledge of PHP is fairly minimal so for the sake of time, convenience, and more importantly security, I’d like to find a plugin.

My requirements: The ability to select amount of people registering (in the event that one person is paying for multiple people), the ability to set the default pay amount ($25, to increase incrementally by $25 for each additional person), a customizable form so the person registering can enter their name, contact number, email, etc., and for the plugin to send an email to us containing the form information once payment has been complete (or submitted if the former isn’t possible, manually checking for payment success isn’t too much of an inconvenience).

Can anyone help?