With the increase in high-quality components on board the Cangqiong, the orange-quality engines indeed became somewhat inadequate. But a direct replacement was not necessary.
Red-quality shipborne engines were not readily available, and at least Song Chi had not seen one in the Family Merit Hall so far.
Perhaps the Merit Hall had some on the 60th floor or above, but that would start at a minimum of 500 Golden Merits, and Song Chi felt it might even be more.
In the Family Merit Hall, the price difference between orange and purple components was about tenfold; there was no reason that the difference between orange and red components was only fivefold.
As for the red-quality [Multi-eyed Tribe's Origin Eyeball] on the 60th floor, Song Chi speculated that its original owner from the Multi-eyed Tribe might have just barely stepped into the Sixth Rank before its Origin Eyeball was removed, placing it among the lowest tier of red oddities.