Having mentioned that, history and fiction have always possessed a degree of ignorance or "fabricated reality" and since this MOC is fictional I wouldn't suggest that Duke change it for the sake of political correctness.
In fact, most of the time they prefer to be called Indians. ;-)
But that's just speaking for northern Wisconsin, don't know about the rest of the U.S. :-$
About this MOC, I'd like to see pics of it with some yardarms at least to get a better perspective of this ship (for me anywayz X-D ).
I'd suggest having this ship Lateen Rigged instead of square rigged.
You did a pretty good job with those log pieces. Looks like it was real difficult to get the right shape using them.