I like red and don’t like black. Red sells almost as well as a original black car. A color change will turn off both red and black lovers. You have a 68. Not all 68’s had the block stamped with vin. Just like a any 67 can be a “matching numbers” with the non original block. I think a cars value based on the numbers on the block is silly. The value is in the vin numbers only. Case in point. I was at the powder coasters the other day. Three of my Chevy friend were there. I had them powder coat a repop A12 air cleaner before I gave them a real one to do because the real one was worth $2500. They all laughed and said, “ man, you mopar guys are nuts with your matching number. I like my cheap Chevys. Everything I’ve got is a matching numbers SS. You can buy the stamps online”.
Anyway, all chargers are hot. They will be the last mopars to loose value in the future. Even if we have a “Mad Max” end of our society, they will still be sought after!