Hybrid battery replacement or rebuild?

So I just recently bought a used and abused 2004 model, and it has been very neglected throughout its 180k miles, but I am slowly working my way through fixing the issues (water pump, clock spring, etc.) and changing the fluids.

I Just recently I diagnosed the hybrid battery as having a HV short to ground and as I have seen on other forum posts that is most likely the only real issue that is keeping me from driving it.
The main question is do I spend the $1100 to just get a re-man battery pack with balanced and paired modules or do I take the time to dissect the pack, identify the bad modules, buy replacements, and then balance them out to make it useable until another module has an issue?

I believe someone has worked on the battery before and I do not know what was done to it, but I think I will have less of a headache buying the battery as a unit from falcon hybrid, at cost of paying more to fix the issue.

 

Well I still need to open it up to see the condition which will help with the decision. However old modules don't necessarily mean bad modules.