HELP!! Inside wall Questions

Im redoing a 1975 Dodge Coachman Tioga, down to studs thanks to rot.  My questions/problems

1. Plywood- great option but wall paper or sticker vinyl seems hard and not a great long term

2. Paneling - if there is a leak it will be destroyed instantly and have to be replaced and reglued - messy and a lot of work, but on the positive I will know if there is a leak rght away, ceiling in paneling seems a bit hard with the glue.

3.  Wood paneling such as cedar plank - downside heavy

4. Trusscore - seems great a waterproof solution.  Will it rattle going down the road? If too waterproof willI not know about a leaky window until its too late?

What other options are there?

I am feeling a bit overwhelmed by this piece, not sure what the best idea is.  Would love some advice for people who have done a full remodel.