Could there be a God if the existence of God were provable? Or vice versa/?

God is not provable on purpose. It's a faith based belief system. It's a figure vs ground thing, like in the following picture. Is it a man playing a saxophone? Or is it the woman's face? Technically as an analogy we as people are on the black side of the picture and not the intangible white face. Many people need this feeling of supernatural and powerful gods that we can't see to sustain their faith and hope.

No as his very attributes you christians give this imaginary god makes his existence impossible much like cubic spheres. When you are able to prove cubic spheres exists, then and only then would there be the possibility of any god existing.

The very fact that you exizt is proof. Creation itself is living proof. I mean, did you think about your intelligent design before you created you? Of course not. Anyone can easily see and know there's a God.

every thing can be calculated, measured, seen and proven if it does exist, you cant prove what does not exist to start with.