Sharing Fluent Community data with other platforms

I'm wondering if anyone else has already done what I want to do?

What I'm doing
(1) I'm using a Fluent Form/Stripe to sell my membership (via shortcode).
(2) I have Fluent Forms connected to Fluent CRM.
(3) I use Kit (formerly ConvertKit) as my preferred email marketing platform.

What I want to do
(1) I would like to automatically send all new member data from the 'Fluent' world over to Kit.

(2) I would like to update Kit whenever a member's situation changes, e.g. cancels, downgrades, upgrades etc.

My Questions
(1) I can see Fluent Forms has an integration with Kit (on the Pro version), but is that more for using Kit forms inside Fluent Forms - or does it also support data from FF to Kit?

(2) Do I need Fluent CRM, as there doesn't appear to be a way of getting data out of there to Kit? I feel this is superfluous to my setup but maybe FF needs it to send customer data?

(3) How is member access revoked when they cancel - does Fluent Community get updated by Fluent Forms and then revoke access?

(4) When selling membership-type products, how do members manage their 'account', edit details, upgrade/downgrade memberships, cancel memberships etc.?

So many questions...😳

Any info is gratefully received.