Sel and Nalthis, "The Twinborn Monster"

Unlike most creatures born with two heads, Sel and Nalthis realized it was in their best interest to leave their twin head alive. Because of their two heads, they grew to be over twice as large as normal, standing larger than a Toa! They are a fierce team feared by even the toughest of warriors. It's four arms and massive steel legs make it even more menacing. Can the Toa stop this Titan before it stops them?

Unfortunately I do not have measurements. The Twinborn Monster has fairly poor pose-ability in the legs, since each leg has 5 articulation points but 2 of them work together/are connected and 2 others are at the knee (so it has two knee joints per leg). The arms are connected oddly but have many points of articulation.