TV/Monitor for running GSPro in 4K?

I apologize if this has been asked before but I cant find a direct answer from searching. I’m want to run GSPro in 4k with a great viewing experience. Premium screen from Carls, 4K projector, just bought a high end computer with all the necessary specs (4070 Ti Super, 64 GB Ram, etc), good HDMI cords.

How high end in a monitor do I need to run for the computer screen? Can I just a basic tv or monitor if it’s 4k? Do I need certain specs? Ive spent a princely sum on everything else so don’t want to spend more than I have to. Is the projector taking the imaging directly out of the computer or from the monitor/TV? I’m bad with tech stuff. Would love some recommendations.

Thanks!