Exactly how specific? I can go on for a while......
I have been lucky enough to find three Galley Q's. Two black and one Aqua. The two black ones were semi local finds, the Aqua one was ebay. One of the black Galley Q's was a first rate classic perv. Part of my sales territory includes the FL panhandle, so I would drive by marinias, looking at the sterns of the sail boats in the slips for a Aqua Galley Q. At the time I didn't know about the Black Galley Q's so I wasnt looking for a black grill. There are a lot of Magna grills mounted on the rails, they are stainless steel with green or blue cloth covers. One day at a marinia in Peridio Key FL I saw what I thought to be a rigged Smokey Joe on the back of a boat. I asked the marinia employee to pass a note to the boat owner, that I was interested in the Smokey Joe on his boat. Turns out, the owner wanted to sell his boat, so the next time I was in the area, I toured the boat, and found that it was actually a black Galley Q. I offered to buy the guy a Magna grill to replace his Galley Q, but he just sold it to me for $30 instead. That was good because the Magna grills are really expensive. The other black Galley Q was local in Atlanta. I saw an ad in a "boats for sale" magazine, (CL or newspaper classified, I can't remember) and in the describition of the boat features it mentioned that the boat had a Weber grill. I called the owner and said I wanted to buy just the Weber grill, he sold it for $10 or $20.
The Aqua Galley Q was an ebay find. I can't remember how much, maybe $50-$60. It was the second one I found on ebay, the first one the seller backed out after I had won the auction. I think he got a higher offer after the bidding was over because he kept saying he had the right to refuse any offer??? Any way the Aqua Galley Q's don't have "Weber" stamped on them anywhere, so they usually won't show up as a Weber grill for sale. Try aqua/blue charcoal grill, or charcoal boat grill. Get a "boats for sale" magazine and look through the discribition for mounted grill, call and ask what kind of grill it is.