Trying to find Nissan tail light harness connectors for custom trailer adapter

I am trying to find the connector shells and pins to patch into a 2004 Nissan Quest tail light harness. Curt and Hopkins make full trailer adapter kits that plug into these connectors, but they can’t tell me what the name of the connector is (and Nissan has been useless):



Looking over our options, I’m seeing a few things that are similar but nothing that looks like a match for the original connector. Do you happen to have any specifications on it? The most useful thing would likely be the pitch, measurement from the center of one pin to the center of the next, aka pin spacing. That would considerably narrow the field.