Nice!
Those Ricoh rangefinders are great little performers and quite rugged.
The lower portion of the ever-ready case would have had a neck strap attached, but they are getting hard to find in decent shape.
You could get a Hakuba Camera hand strap or similar, small strap with a tripod screw as a start. It wouldn't protect the finish of the camera, but it would at least give some protection against having the camera slip out of your hands.
That's a chunk of steel; you wouldn't want it to land on your foot or the head of an unsuspecting person if it got away from you!