My bars are
1, 2, 3, 4, 5, shift+1, Shift+2, shift+3 shift+4, shift+5, z, x
`, q, e, r, f, shift+`, shift +q, shift +e, shift +r, shift+f, shift+z, shift+x
and my left sidebar has mouse3, mouse4, mouse5, and the shift-variations of them
It works really well for me. I can't imagine going without WASD or needing to.