Battery replacement 2010 240k kms

Hi . Im new prius owner. Can anyone tell me where should i come to replace my battery. I done some research and it say . In Toyota they charge 4-5000 for battery replacement. And i found some shop they charge only 2,4k for the battery 3 year or 100.000 kms warranty . So . Im confusing which one is better price/performance. And also my prius doesn’t have back up parking camera . Anyone have experience set up by myself can tell me where i can found information about that and which camera is good
thank you .
First time own hybrid car