Payment Gateway Setup for Fiat to Crypto in China

I'm looking for a professional who can help me set up a simple payment gateway for converting fiat to cryptocurrency in China.

Key Requirements:
- Support for Bank Transfers and Credit/Debit Cards for Fiat Transactions
- Integration with a basic payment gateway
- Support for Bitcoin (BTC), Ethereum (ETH), Tether (USDT)

Ideal Skills:
- Experience with payment gateway integration
- Knowledge of cryptocurrency transactions
- Familiarity with Chinese payment systems

Please note, this is a basic setup for simple payment processing.