I bought a 2013 EV a couple years ago. The seller told me the unit sat for a long time and battery acid had corroded the metal tray pretty bad but he thought the tray was salvageable so he replaced the batteries and left the original tray. I was pretty ignorant to the issue at the time and now have noticed the tray as well as the side floor supports are completely corroded and need replacing. I was able to find used parts online but before I purchased I wanted to see how difficult this job is? Has anyone had any experience replacing floor supports and/or battery tray? Any guidance would be much appreciated!