Add a Paypal checkout button to a SELF HOSTED Sharetribe marketplace -- 2

Greetings,

Integrate a Paypal checkout button for sellers and buyers on to a self hosted Sharetribe marketplaceP2P marketplace platform website. The marketplace currently has Stripe checkout.

Countries you operate/available currencies;
USA

Payment logic#1:
Buyer pays marketplace whole amount , after which marketplace sends seller that amount (minus 5% commission) this solution was discussed with PayPal see link:
https://developer.paypal.com/docs/platforms/checkout/advanced-card-payments/

or Payment logic#2:
Marketplace takes 0% commission

Addition info:
Per below article "PayPal payments are only available on marketplaces hosted at Sharetribe.com due to special permissions needed from PayPal. We hope to add support for PayPal payments to the open source version of Sharetribe in the future."

https://publish.yexperiment.com/post/156715320289/sharetribe-you-are-great-but-sharetribe-is-a

This integration will not work with those instructions (see link above) are for a much older version of Sharetribe. Since the marketplace is for an older version, it would be dangerous to use those SQL command.

Addition info:
This below link was provided by Braintree tech since they are also Paypal
https://developer.paypal.com/docs/platforms/checkout/advanced-card-payments/
https://www.braintreepayments.com/es/products/braintree-marketplace