The winch I went with is a Warn ProVantage 4500 lb. For some reason Amazon had it at $150 cheaper than the 3500 so I opted for the bigger winch. That meant needing a larger battery. Thank you for all who have posted on here about what would fit as a stock replacement. It lead me to find Odyssey.
After some measuring I ordered an Odyssey 925L. It was a bit frustrating to find out that the 925 is literally 1/8" to wide to fit between the seat frame rails. I said fuck it and spun it to the side, chopped some wiring and built some new wiring (used all tinned copper marine grade with heat shrink on the ends). I had to build a new battery tray to hold it in.
I’ll get some better pictures that details the work but figured I’d share what I’ve got so far. If anyone has questions about the install please feel free to message me or a leave comment.