[12 piece bucket]

You're on your way to a good motion. Looks to me that you may want to focus on some slow motion plane line tracing. The club is moving out/over plane, which forces you to keep the clubface a bit too closed going back in order to make solid contact and keeps your right side too high through the ball.

Try some "left foot right toe" drills - setup, then move your right foot back (about a 6 inches/foot behind the left heel, up on the toe). Keep your shoulder line square.

This will give you a much more 'underhanded pitch' feel and let you feel a 'cleared right hip' and a lower right shoulder through impact.

Flexibility may be an issue, so use just 3/4 swings with a wedge to start. 'Allow' a bit more of a startup swivel as you start back.

You may find that at first you will either pull hook the heck out of it, or perhaps hit some hosel rockets because of your current tendencies, but stick with it and keep tracing that straight plane line.

What about Inside Out Cut Shot Therapy?