It remains to be seen just where the carrier will be assembled. if its current construction spot is the place of final assembly and later on the launch of the whole ship, then yeah, two more years will need to pass. And a basin could be constructed in time. If, however, the final assembly and launch will be performed elsewhere, and current construction spot is just for module construction, then this current big module may be ready for movement within months. And basin would most likely not be constructed in that timeframe. Begging for some other means of moving the module to the river bank.