52napco doesn’t seem to have any problem finding them... seems like he buys one once a month
They are around. My suggestion would be to search the western states. There’s still decent trucks with good options out here as opposed to the east cost. My dad has a 72 K20 in north west VA. One day it showed up on Craigslist and he happened to be the most persisitant person willing to pay full asking price. It wasn’t on Craigslist but 12 hours. Keep an eye out and be patient and you’ll find one. They don’t seem to last long when they do come up. Mark is right they are getting to be pretty popular it seems.