setxkbmap -layout us,us -option “” -option “caps:backspace,ctrl:swap_lalt_lctl_lwin”

With two -option options, the first “” clears off the existing options, and the 2nd one “adds” to the empty options. This sets the capslock as the backspace, left-alt as the control key, “windows” key as meta, and left control as super key. My left hand is very happy.