fixer-upper Z71

[Xtreemjedi]

Hey guys, just bought a semi-rough 2003 Suburban Z71 4WD. Seems to have alot of options, I have papers on it having the trans rebuilt last year which is nice. Needs pads, rotors, and tires. Took it to get the check engine light and got this list:

 

U1000-Class 2 data link malfunction

U1255-Class 2 communication malfunction

C0300-Rear Propshaft signal circuit malfunction

C0305-Front propshaft speed sensor system malfunction

C0306-Motor A/B circuit malfunction

C0321-Transfer case lock circuit malfunction

C0327-Encoder circuit

C0359-4LO discrete output circuit malfunction

C0374-General system malfunction

C0379-Front axle circuit malfunction

P0141-Oxygen sensor heater circuit bank 1 sensor 2

P0154-Oxygen circuit activity detected bank 2 sensor 1 intermittent

P0155-Oxygen circuit heater circuit bank 2 sensor 1

P0161-Oxygen sensor heater circuit bank 2 sensor 2

 

After some googling, looks like all the "P" codes and C0300 are all oxygen sensors that probably need replaced. After that I'm unsure of the rest figuring out what actually needs to be fixed. Any help guys? Thanks in advance! Nice to be here