67 dart gt convertible V8 production numbers?

Not a pilot car, but it is a 67 LP27H72 Dart GTS convertible, only 6 known to exist! Looks to be 100% original 4-speed car too, 3.23 sure grip rear.
There's more than that...thats just RK Motors number, from their EBay ad. There were 226/227 4-speeds (depending who you believe) originally built. Still a pretty rare car.