Hawk Moth

Found in a garden in the back of a restaurant. This one was pretty feeble when found. He could not fly and could barely crawl around. I think it was very old. I've tried to conclusively identify this one but the closest I can come is perhaps a Vine or Yam or Green Hawk Moth. Nothing I found though was close enough to determine its identity. Any help will be appreciated.

The 3rd and 4th photos are stacked imagines (3rd - 10 images, 4th, 17 images)