RADIUS Authentication Setup with Google SSO

I'm looking for a professional to set up a RADIUS authentication system that requires users to authenticate via Google before accessing my Unifi network. The system needs to be compatible with Chrome OS, macOS, iOS, and Android devices and seamlessly integrate with both cloud-based and self-hosted Unifi controllers, such as the UDM.

Key Requirements:
- A Google authentication prompt should be presented to users before network access is granted.
- Full compatibility with Chromebooks, MacBooks, iPhones, and Android phones.
- Complete and smooth integration with both cloud-based and self-hosted Unifi controllers.
- (Optional) A preference for a self-hosted RADIUS to minimize recurring costs, but I currently have no preference.

My network uses both Wired Ethernet and Wi-Fi connectivity. I want this system to allow any Google account to authenticate, not just G Suite or personal Google accounts.

Please provide a detailed bid that includes:
- Setup time
- Required infrastructure
- Any third-party software or licenses needed.

Ideal skills for this job include:
- Deep understanding of RADIUS server setup
- Expertise in Unifi networks
- Experience with Google SSO integration
- Knowledge of cross-platform compatibility