I think it could like quite sharp!How ridiculous would it be to use shiplap, coated in a clear epoxy, for the exterior of a build (with a thin, sealed plywood veneer underneath it) instead of going for a smooth fiberglass look? The idea of a camper that looks like a pirate ship sounds rad.
Please consider whether you want to draw attention to your camper, and your family, especially if you will be leaving the camper parked for long hikes, days of skiing, etc.
You might consider using "pirate ship" concept inside your camper (as well as possibly on the outside too).
You might enjoy looking over the following link:

This Handmade Truck Camper Will Make You Feel Like You're Living In A Yacht
Called the House of Seven Rivers, you'll be left wondering what isn't included in this remarkable handmade truck camper made from the finest of materials.

You might want to look over epoxy and fiberglass:
Finish Coatings | WEST SYSTEM Epoxy
Finish coatings are essential to extending the life of the epoxy moisture barrier, providing a stable base and a finish that endures.

Applying Fiberglass Cloth & Tape | WEST SYSTEM Epoxy
Learn more about applying fiberglass or tape to surfaces to provide reinforcement, abrasion resistance, and prevent grain checking.

And in case you are considering a shower inside your camper:

Fiberglass Tub and Shower Repair
To do a fiberglass tub or shower repair with epoxy, first determine the location and extent of the damage. Next, see if repair is possible from the back.
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