This connector series is no longer made. When existing supplies are out... that's it.
you can pull the pins out of your IDC type plugs and reuse the shells. Not super easy but possible and does work. You can use the same pins you have in the top photo.
I stocked up with thousands of these connectors when they went "Last Time Buy". Unfortunately, I didn't buy enough.
I do have 09-01-6051 (5 pin power) available but no 10 19 or 24 pin plugs.
Was considering going to AMP plugs but they have also discontinued several sizes.
I have 24s for these but have not tried them to make sure they fit: