Clip off the shield(or as much as possible), File down the shield, and the holding arm.
flatten out some putty, cut out a small rectangle out, then flatten that as much as possible. Apply to back and around the filed down arm.
roll out a small sausage of putty and place it below the thigh plates. smooth the sausage around to give a more natural appearance.
Undercoat and paint.
And finished :) .