Make yours. I bought the connectors on aliexpress (ECU and OBDII), and made the hardness using an 12V@2A power supply.
Not good with those darn pins.
I DO HAVE one, but suspect not working anymore. Bought from Nelson IIRC. Have power supply, the connectors (ECU, OBD2, etc). Just prefer someone to either redo (and check that it works) or at least test/verify. Or simply buy one from someone.