The part number for one of the headers is listed as:
Ref #s: J101 J102
Part #: 5122377000
Description: CONNECTOR,SOCKET 3024-06A
Pin spacing seems to be about 3.1mm (after converting from inches), and measuring roughly center to center with a dial caliper, so definitely sloppy. Mouser has 2.8, 3.0, 3.18 for pitches.
Have done a ton of googling, but my google-fu is weak on this one! Was hoping someone had done this before. If the below looks familiar to anyone would be awesome!!! Appreciate the help everyone.
Other connectors have the same format, different number of pins. Here's a photo of the female end:
