Where are you located?

 

You need to fix the obvious wiring damage before you chase any codes. If you don't want to solder, ok, use crimp connectors & heat shrink. Anything is better than a fistful of broken wires. Once you've fixed that, clear the codes and see which ones come back. Then let us know.

 

I dont know what wires to use, the types of wires, the differences, the colors. Im not an electrician. I dont know anything about wires. I dont know how to heat shrink wrap wires. I have never done it. And from what Im reading its allot of work.

Why is the dash lighting up like a Christmas tree with all these new codes if nothing has changed with the car?

 

Bug out place. another country. Satellite internet.

 

You don't need to be an electrician, It's not hard. You can get copper wire at any hardware store or autoparts store. All you need is wire the same approximate gauge/thickness. I'm sorry but if you can't even crimp wires together, you are going to have a hard time fixing anything else.

That wiring IS the cause of at least some of those codes. Until you fix that, everything else is just a random guess at what's wrong

 

Do you know if is the right part? I see lots of wires. Engine wire harness .. tranmission wire harness ... transfer case wire harness..

 

If this is a rat how far can the damage go ...

 

The one from ebay is transmission harness and probably the one you need cuz there is only one harness piece in that area. Not sure how they will deliver it to where you are though.

Just twist the wires of the same color and tape with electrical tape to get you running. Have a pro do a proper fix.

 

He already said it's not from a rat, it's from a forklift.

 

I really have no way of knowing. Probably. But the transfer case is also in that area (that round cover in your photos is the back of the transfer case) so maybe that's the harness you need.
Again, it's likely to be way more work to install this than it will be to strip the ends off each broken wire and twist the ones of the same colour together as a temporary fix. Wrap them in electrical tape after they are reconnected. Then see if you can pull a wire harness from a salvage yard truck instead of buying new -- at least that way you'll have an idea of just how much work is required to get to it all.
Seriously, you are probably going to have to remove the entire centre console inside the truck including the shifters and the parking brake and then drill out the rivets for the transmission cover plate just to get to half of the connectors on that harness.