Looks to me like more than just the door handle would need looking at. You could replace the handle and do some bodywork (might get expensive) or just get a new door altogether from a junker or from someone here maybe (but might have to paint…). Depending on the route you go…maybe $80-200+??
Yah, do it bodywork
I remember a junker wanted over 200 for a door…
Ridiculous… Replace the whole handle. Paint it, And fiberglass the spot on the door. done and done! 8)