2018 Cannondale SuperX Hi-MOD Ultegra Di2?

What price would you take this bike at, assuming good condition if I give it a test ride?

Photo: https://imgur.com/a/dPK73FE

Details:

• Frame/Fork: Cannondale SuperX Hi-Mod carbon frame and fork
• Drivetrain: Shimano Ultegra Di2 6800 series w/ handlebar remote switch. FSA SLK light BB30 crank.
• Brakes: TRP brakes
• Cockpit: Cannondale alloy handlebar, ControlTech Richey 80mm stem, Cannondale alloy seatpost, and Fizik Tundra 2 saddle
• Wheels/Tires: Mavic Aksium wheels
• Size: 54cm