HI Brandi! You actually have a
Casita. The door hinges are a give away.
Scamp never used that style. And the interior carpet is a definite
Casita item. Personally, I'd clean the carpet. You can rent a carpet cleaner and scrub it. Just don't go wild and soak it with water and scrub it to death to the point the glue lets go. Better to scrub twice, with drying between, than try to do it all at once with regrets.
Since you've taken the cabinets out, what do you plan on replacing them with? Some of the cabinets are structural and actually over time hold the roof up!
You mentioned using it as a playhouse. Do you mean that literally, or as a playhouse while towing to camp? Really it will make a difference...