Pre-Sales Question: Recurring Donations of Custom Amount with Recurring Invoices

Hello, we’re very interested in your product. Before we buy we would like to see if it will meet our specific requirements. We need to do the following and in this order:
– Allow visitors to the site to fill out a donation form (personal details, custom donation amount, and credit card details). We currently have a Gravity Form here: https://heartcrydev.wpengine.com/donate. We would want to keep a form like this.
– After the user fills out the form, a WPInvoicing transaction is automatically made on the page via PayPal Payments Pro, using WPInvoicing to manage that. If the payment is successful, then a paid receipt (or paid invoice) is sent to the donor.
– If the transaction was recurring, each recurring successful PayPal Payment Pro payment should trigger WPInvoicing to send another Paid receipt.
– If a payment is unsuccessful, they are notified via the Invoice system.
– If the user wants to cancel their recurring payment, they have access to do so.

Are these events possible with your plugin and addons? I see the Gravity Form addon, and I see the PayPal Payments Pro addon.

Please advise if you think your products can meet our needs or not.