Mission accomplished! Dropped it off yesterday along with a bag of Kingsford and a spare weber chimney I had laying around.
Rick (the owner) came into my wine shop tonight to buy me a beer. He said that he had, in fact, missed the grill and was starting to look around at estate sales in order to pick up another one. I did not have the heart to tell him that I am pretty sure I beat him to all the estate sales looking for Webers in the area... He is a Harley rider and so I felt it my duty to give him some education on the grill (year, unique features, etc) and to let him know that vintage Webers are like vintage Harleys - a nice piece of American history. He could relate.
Turns out his 23 y/o daughter, a budding griller herself, read him the riot act for giving it away in the first place. I think she is happier than him that it is back and in good shape. Hopefully she will be the one cooking on it for the next 20 years.