Finally got a 30 min window to do some work on the 4Runner today. Quickest task I could complete in that time was to repair the back up light harness / transfer case harness (the small one). While I bought all the terminal parts, the terminal key tools, etc, I decided that it'd be faster to just solder up the harness w/ the pigtail (wires are about a foot long---overkill but appreciated). I've attached the part number w/ price and pictures of my fantastically beautiful soldering job lol. Part number is on the harness too. Vendor is https://www.bmotorsports.com/. This is a lot cheaper than buying a new harness.