I appreciate all the feedback. I spent the last night further adjusting scales and positions, and also modeled the plaques and armature holding the models. Ended up scaling the TOS, A, and E up a bit from the last "idealized" version. I think this is what I'll be doing with. There are really no clear shots of the armature mechanism available, so I generated a best guess. And the plaques are centered with the ships, not the armature.