, but not without some modifications. Unless you find a donor trailer of the same year & model, you will have to make some modifications to fit....especially if you replace the floor.
We took our entire interior out of our trailer when we restored it...then we made new "exact replacement" panels to go back in from the old panels. Because we had changed out the floor, we shifted the shell around enough that the shape had changed and the the old panels did not fit any longer...there were gaps at the walls, sometimes as much as 1/8-1/4". We ended up making all new panels custom fit to the new shape.
Personally, I think your time & resources would be better spent making new panels rather than tracking down a donor.