The onscreen image is perhaps not the best view. Also, of course, the TAS ships are often not drawn consistently.
This is another view as a line drawing from the
Official Guise to Star Trek The Animated Series. Seeing the ship in profile (not seen onscreen) gives us a better idea of the shape and proportions and how parts relate to each other. As such I am starting again from scratch given I have done this before with the alien pod ship and the unknown (never seen onscreen) saucer design.
If you think the pod ship from "Beyond The Farthest Star" was weird (and it is) at least I could envision something like it being constructed as a miniature. I cannot really envision this thing from "Time Trap" being made as a miniature. The "wings" on the side are more complex with compound curves than is apparent from the view seen onscreen. At best I could see perhaps something like this put together yet seen only in the background here a lack of surface detail wouldn't be apparent.