I need help to make a site for dropshippers and Suppliers

basically I need a hint for how to set a supplier role, the suppliers have a dashboard to upload products and see all the sells, only that, im using Woocomerce multivendor for that but I don't know how to adapt it to my necessities.

also, I can make a wallet or something without making the pay with stripe or PayPal, in my country the best way is generating a QR to pay it but I don't know how to implement it as a payment method.