Gravity Forms Product Add-Ons / WooCommerce Snippets

Please note: You need to have a very good command of the English language and understand this description well. As a coder you need to be proficient in the following: 1.) WordPress; 2.) Gravity Forms; 4.) WooCommerce. I'm creating a subscription product (insurance product) using the following: 1.) WordPress; 2.) WooCommerce; 3.) WooCommerce Gravity Forms Product Add-Ons; 4.) WooCommerce Memberships; 5.) WooCommerce Subscriptions. The Gravity Forms Product Add-Ons extension collects user data and does the insurance premium calculation. What I need is a plugin or function(s) that will interface between the WooCommerce Gravity Forms Product Add-Ons extension and the WooCommerce Subscriptions extension: 1.) The Gravity Forms form should, via a user selected date field, tell the Subscriptions extension on what day of what month to start the monthly subscription. Admin should be able to select which days of the month should be available for user selection, and the months available for the first subscription payment should only be: the current month | the next month | the month thereafter (on a rolling basis). 2.) The Gravity Forms form should, via a Gravity Forms Pricing Field, tell the Subscriptions extension what the amount and frequency of the subscription should be (selectable via a drop-down or radio buttons in the form as monthly, quarterly, 6-monthly or yearly). 3.) The Gravity Forms form should be able to determine an Admin-configured annual escalation rate in percentage for the monthly subscription (only for current subscriptions from the second year onward - the initial amount of the subscription is a separate matter and is calculated by Gravity Forms). It should also be possible to edit the escalation percentage at any time, and all current subscriptions will then escalate by that percentage on the anniversary of the subscription. Please feel free to ask questions if you're unsure of anything. I look forward to your bids. Regards, Phil