Is the OR options worth getting??

So 4wd is ATRAC should suffice for most situations then? No need to go all out with 4wd and E locker rear? I currently have only a detroit rear lsd in the back and in off camber situations it does not cut it offroad.

 

Not sure I understand your question (typo?)...?
A-TRAC is only available in 4-LOW, and yes it will take you anywhere that would otherwise require lockers to get to, safely.
4WD no lockers is better than 2WD with locker, yes.