Custom keyboard layout

Testing Zorin OS. Any way to use Linux without having to buy a new keyboard? US INTL dead-keys is a monstruosity and for some reason the keyboard layouts under my language are not even qwerty.

Have been searching for a solution for days now, all I find are gits you have to remap every single key everytime you format. Tried creating a .xkb file but no success in actually installing it.