Complex sentence: Prior to the commencement of building this ship, none of the numerous proposed full-size replicas of the "Titanic" ever made it to the point where actual construction began, but in May 2015, Wuchang started making parts for the vessel.
Split into simpler sentences: Prior to the commencement of building this ship, none of the numerous proposed full-size replica ships of the "Titanic" ever made it to the point where actual construction began. Despite this, in May 2015, Wuchang started making parts for the vessel.