If the car was purchased because of the numbers, then you are doing yourself and the car a disservice by not pursuing a full investigation in confirming those numbers. Like many have said, there shouldn't be a JH23V car in existence. There are a lot of cars that shouldn't exist. But here you go having one. There are only 2 logical reasons why you have a JH23V car. It was built by the factory (on purpose or by accident) or it was faked by someone. When I first bought my 72 convertible, the first thing I did was decode every number I could find. No fender tag or build sheet so all I had was my JH23G vin and some matching body stampings. I quickly learned I had a plain Jane 318 hardtop that was butchered. Oh well, I didn't find a Holy Grail car, but it's still fun as hell to drive and enjoy.
Which brings me to my second point: If the car wasn't purchased because of the numbers, Congratulations! You're the kind of person this hobby needs, someone who enjoys the car, not treats it like the Mona LIsa and keeps it as an investment piece. In that case, drive the wheels off it and enjoy arguing with the "Mopar experts" who read your VIN at a cruise night.