Maybe not a Cocktail nor a Bartop...

Just changed the sharpness of the TV to maximum and,... Eureka! All games fit perfectly on the whole screen! Donkey Kong, Galaga, Frogger, Pac-man, Pac-Mania, ... you name it!
Simple resolution for a big issue! These old CRT tubes... Check Donkey Kong running!

The guys at BYOAC suggested a few options for the control panel and cabinet format here.
I'll may go for a small size cabinet, it looks a better option to be.
Now, I'm going to take some measures and start a few sketches.