Crypto payments on Wordpress with WooCommerce

My WooCommerce-based store needs the option for customers to pay in Bitcoin, Ethereum and Litecoin. I want to keep complete control of the funds, so I’m leaning toward a bespoke payment gateway plugin rather than relying on a third-party SaaS... (Budget: min $50 USD, Jobs: Bitcoin, Blockchain, Cryptocurrency, MySQL, Payment Gateway Integration, PHP, WooCommerce, WordPress)