It's rare and very valuable. That kit was retooled into a delivery version. Neither has been reissued for a long time. Search it on E-bay. Take your time to watch a few auctions. 200.00 to 300.00 and up is what I have seen.
George Barris was a fixture at the SoCal car shows. I have seen him many times and it was always a neat thing. He put in a lot of time being George Barris, which is perfectly OK. A lot of good things came from that including some great car models. He did build his own legend - both good and bad. Re: The Dragula -see below from wikipedia. Perfect fit for this thread. Maybe even ironic. DRAG-U-LA, along with the Munster Koach, was one of two cars designed by Tom Daniel while working for George Barris and Barris Kustom Industries for the television show The Munsters.
That is it. One I asked our local Hobby Town about stocking SA. They said the corporate distributor determines what they stock. I would imagine that a single store location like Pegasus Hobbies subscribes to a certain number of magazines each week, but I never asked them. Those would come bulked either in large capacity envelope or a box.
The company I work for prints a number of those. Check QG.com. We also print smaller circ mags like Models Cars. I suffered damaged copies for a while, then it cleared up. Now if someone can tell me how to un-brick my back issues that got damaged in a house flood, I would be pretty happy.
I work in the commercial printing industry. The copies that go directly to subscribers are placed first on pallets then sorted in to mail trays according to zip code. During the sorting, mailing labels are mechanically placed on each piece. The trays are taken to a post office there they are processed through the mailing machines and out to the various local post offices where the carrier eventually delivers them. There is at least twice the machine processing of each copy and a lot of human handling. The copies that go to the hobby shops and stores are usually bundled in a box and that box is delivered to a distributor either via UPS or a truck depending on the size of the load. My guess is SA goes via UPS. The distributor removes them from the box and shelves them. No machine handling after press and far less human handling other that store patrons grabbing a free peek.
Not so much a barn find but.... In the late 70s, about 10 houses down from my parents a really nice guy had a 100% original 69 Boss 429 up on blocks, stored in his garage. I am guessing the mileage was under 50k. I don't remember that part. He had it there for years. The polyglass Goodyears were set to the side. The radiator was drained and put aside as well. The gas was drained too. There was even an extra cam in a box. He said he was saving it for his kids college. He was a pretty young guy. He had bought it from the original owner when he was just out of High school with money he had earned himself and he used it as his second car. I used to always talk with him if he was out front. Once he was ready to put it back together so we could take it for a ride, but that never happened. Too bad. He moved away and took the car with him. I don't if he ever sold it. I always told him I would save the money to buy it. I bought a house instead.