P0A80 Need to replace HV pack. Gen 2 2005

Hi So I been having this code come up couple times this year, Earlier this year I had gotten the code and just bought one module and just slapped it in and hoped for the best. I know that isnt the best fix but it lasted me some time. I had got the code again and repeated the process so i can buy some time to look for a new pack. My question is that what would be the best bang for the buck a new HV pack from toyota which is about 2300 with taxes and all. or a new upgraded battery pack. I looked around here and saw someone had gotten around 60mpg with the new lithium ones. I am also wondering how long do those upgraded batteries last. I know OEM packs usually last around 150k or tens years on average do the upgraded packs last the same or longer?