Broken (?) OBD2 port

everyone.

I have an intermittent problem with my 2010 Prius III's OBD-II port. A few years back, I had a Bluetooth ELM327 adapter plugged in to use Torque, and unfortunately another driver bumped the adapter and broke the port loose from its bracket.

Ever since, when I go for my annual NC state inspection, it's a toss-up as to whether the inspection system will be able to communicate with the vehicle. Even my local Toyota dealership has had issues, though last year, they claimed that a fuse replacement solved the problem.

Today, I went to two separate places (not the Toyota d'ship) and both said they couldn't connect. I've checked all the under-dash fuses, and none are open. I even found my old ELM327, and it connected just fine using Torque, although I needed to reach behind the port and hold some of the pin sockets so they'd make good contact while plugging in the adapter.

So - questions:

1) Does anyone know whether the cable from the OBD port to the computer is available to order separately? I've looked at every OEM part site I can find, and the closest thing is the computer module or the entire wiring harness (uh, no.).

2) Has anyone had any experience with repairing one of these ports and/or re-wiring a new connector? My soldering skills are dodgy and I don't really want to screw up a complex harness with little excess wire.

3) The dealership mentioned that even after replacing the fuse, they couldn't get TechStream to communicate with the ECU - hence, my 2010 hasn't had the inverter recall test done. Does it make sense that I could get my ELM327 to communicate fully, but they couldn't get the TechStream to connect? I'm a tad paranoid that they just want to get 3 or 4 hours of diagnostic labor charge just to poke around and find "the problem".

Sorry for the long-winded post - this has been a nagging issue for the last few years, and I'd really like to see it solved. Thanks in advance for any guidance!