Well, there is Winger’s thread, though I don’t think that has any information in it that wasn’t covered in your post.
I will personally say that it’s not necessarily clear cut on whether Tuyet actually travelled with Lhikan as part of the same Toa team (and thus shared a body style):
While Lhikan’s statement in The Many Deaths of Toa Tuyet, “You and I have been friends for thousands of years. We’ve traveled together, fought together, and once almost died together,” does make it seem obvious they were on the same Toa team, Tuyet herself contradicts it just couple lines later.
In explaining the Nui Stone, she says “[the Nui Stone] ended up on my home island…”, the implication being her and Lhikan come from different lands, and the area Lhikan’s team protected was not her home island. Of course, just because Lhikan and Tuyet didn’t come from the same home doesn’t mean they couldn’t of been on the same Toa team somewhere else (and thus shared a design). Yet, two paragraphs later, Tuyet claims, “Shortly after I left home to help you and the others fight the Kanohi Dragon here, a team of Dark Hunters invaded my homeland.” Not only is this doubling down on Lhikan and Tuyet being from different lands, but heavily suggests she remained in her homeland until the Kanohi Dragon incident, separated from Lhikan and his own team, and thus implying she was not on his team.
So, while Lhikan and Tuyet clearly have a history together, it’s not one necessarily from being on the same team. For all we know they were just close pen pals who had a gap year backpacking together through the universe.
I’ll also add this Greg Answer, which suggests that the Toa Mangai would have armor similar to Lhikan’s. Though I’d be remiss to not also point out that the context of the statement leaves it ambiguous as to whether this statement applies to Lhikan’s team pre-Metru Nui, or the Mangai whilst on Metru Nui.
All of which is a long way of saying 