Hello,
As a highly professional programmer and skilled developer, I would be glad to help you with this project.
For payment gateway, I can integrate any API you prefer. I usually recommend PayPal and 2Checkout gateway to my customers, because none of them charge you monthly.
As of payoneer payout, you'll need to have a vendor partnership with Payoneer in order to be able send money to payoneer automatically. otherwise you can still save your customer's payoneer email address and pay them manually one by one. Is it something that you considered? ( do you want to offer different payout options as well, such as paypal for those who don't have payoneer? )
Please let me know if you are interested, I can start the project right away.
Thanks,
Armin
"do what you need"