The SS 'clones' were definitely around 30 years ago. Lots of people were taking parts from wrecked or rusted SS cars and installing them on Malibus. We did it back in the 80s. You could sometimes still come across SS cars in the junkyards back in the good old days.
Back in 1985 when I was looking for a posi rear for my '68 SS Chevelle I came across an advertisement for a '69 SS car that was missing parts. I responded and bought the car, which was missing its engine, bellhousing, clutch, grille, hood, one fender and some other parts. Parts of note that were still there were tach/gauge dash, bucket seats, disc brakes, 3.31 12 bolt posi, Muncie 4 speed, driveshaft, frame, doors, glass, deck lid, front and rear suspension, rear seat, rear window defogger, one outer and two inner fenders and lots of small parts. I am still offing parts from this car as I recently gave a friend the rear frame braces. Oh yeah, I paid all of $125 for the car...with a clear title.
Try to find an ashtray or a correct '69 big block upper alternator bracket for that kind of money these days.