Online Gaming/Betting Website Development

I’m looking for an experienced freelancer to develop a professional online gaming/betting-style website.

Requirements:
• Multiple games and categories
• Ability to add/manage unlimited games through an admin panel
• User registration and login
• User wallet, deposit and withdrawal system
• Game-wise dashboard
• Complete admin panel for users, games and transactions
• Secure payment gateway integration
• Referral and bonus system
• Real-time game/API integration where legally permitted
• Fully responsive design for mobile and desktop
• Strong security and database protection
• Scalable system capable of handling a large number of users and games
• Complete source code and deployment on my hosting/server

Please share your portfolio, estimated development cost, delivery time, and technology stack. Only legal and properly licensed implementation is required.