Repair is done, except I've got to tighten my exhaust manifolds a bit more to get rid of the exhaust leak. Disco runs great, but I've go some codes:
P0130 O2 sensor (bank 1, sensor 1)
P0130 O sensor (bank 2, sensor 1)
P1590 Rough Road (probably ABS related, as I have pretty much every brake light illuminated on the dash)
P1668: Anti Theft alarm serial link fault drive cycle
signal out of range - Above maximum

 

The O2 sensor codes are new, aren't they? I ask because I hadn't seen you mention them in previous posts. I couldn't tell from the previous picture, but to ask the obvious: are you sure you got them completely connected? Assuming the connections are good, I would work on the exhaust leaks and see if the o2 codes go away once the leaks are gone.
The P1590 is a common non-descript code that appears when the three amigos are visiting due to some ABS malfunction.

 

Yes, the o2 codes are new. I will try disconnecting the o2 connectors and cleaning them. I will be replacing brake pads soon, and will also clean wheel speed sensors and hope that clears the 3 amigos and p190.

As for the p1668, I read that some people see that when the battery has been disconnected for a long period of time, which is the case with me. I'm going to drive it for a bit and see if the code goes away on its own.