[Plugin: Contact Form 7] Paypal button integration

Hi everyone. I’m using Contact Form 7 to create somewhat of a registration/membership form on my client’s site (the registration is for a physical event, not the site itself).

I currently have two radio buttons where the user can select what type of membership they want. Ideally, I would like the data from the form to tie in with a PayPal button so that users don’t have to enter/choose the desired amount a second time on the PayPal page.

Also, if possible, I would like to integrate two (optional) check boxes for if users want to pay an additional fee for extra access at the event. However, I don’t know if that’s possible with PayPal.

Any help would be immensely appreciated.