Rear Wall Repair/Replacement Questions

[NewbieCamper]

Do I need to remove the cabinet above the window, the tub and the wall between the bedroom and bathroom to replace the back wall paneling?

[franktafl]

Wow, looks like quite a bit of water damage. Good luck!

[Gbwoodman]

If I was doing it I would remove it all. Start from scratch put it all back better than before. If you are going to do it then do it right. You will be happier in the long run.

[videoarizona]

I would first try and figure out where the water came from. Probably window???
Regardless. Remove everything that's in the way... Will be so much easier. Then do the repairs.
You will be much happier after you've finished...