Very nice modeling and animation!
The profile is very pleasing, as well.
One thing I did notice is that you show the door opening going all the way to the floor with the wall fully cut away at the bottom. Most designs leave at least a small portion of the wall under the door to act as a sill. This greatly stabilizes the wall during construction and handling, and, IMO, makes for a much stronger box. Consider it.
If you are set on keeping it the way you show, you may want to leave a small strap of material there at least temporarily until after the wall is mounted and some of the spars go in; then cut it out once things are stabilized.
You do have a very stout frame, IIRC, so may not be as big of an issue for you as it is for smaller bolt together trailers with shallower frame sections.
Build on!