After my last post, I realized that with a  functional Ledge X and K v1, and someone helping with the Ledge S, I could aim a bit higher. My initial PR was meant to simply get Ledge-X building in Marlin, without LCD. I think now it's reasonable to say we should aim to have X, S, and K working minus the LCD. Whether or not we hold for the TFT pull request is another issue, and will largely be controlled by whether or not the TFT PR lands first. I know there's something wrong in current code where the init sequences aren't working, and I know a range of commits that broke it, and when I'm home, I'll gradually suss out which one is at fault. Also, I've found that I'm missing some pin information for the X (the transistor which enables/disables the divider network for thermistor use), so it'll be back to the multimeter for that.