Payment through Woocommerce gateways

It would be really beneficial if support for payment through woocommerce can be added to any of the plugins with payments like pro sites, crowdfunding, membership etc. All plugins are great but support Paypal as main payment provider. But setting up Paypal is not easy in some countries where there are not a lot of people accustomed to it.

Woocommerce has got a lot of payment providers, and that would be a good option to use.

Woocommerce is not a necessity, but more payment providers is. Or can you set a little guide, how one can add a custom provider, as nearly all providers have public API documentation and also support woocommerce widely.