We asked CopperPilot for a boring GPS board. It did not give us one.
It put PPS on its own LED, which most GPS breakouts skip, and which is the difference between a position module and something useful for precision timing. It also added a backup battery with a protection diode, so the module can take a fast fix after the first power-up instead of starting cold every time.
Schematic to fabricatable board, in KiCad.
Try it free at copperpilot.ai.