Integrate Payment Method on Website

I need to add a payment method to my existing website where I sell services. Currently, I provide price quotes to interested customers, and I want to streamline this process.

Requirements:
- Integrate a payment method (Credit/Debit Card, PayPal, or Bank Transfer)
- Ensure the integration is smooth and user-friendly
- No need for integration with any existing systems or software

Ideal Skills and Experience:
- Experience in payment gateway integration
- Strong understanding of website development and user experience
- Ability to work within budget constraints

Please contact me urgently if you can assist.