The idea of the partially alien implant could work and play into what humans were used to. Humankind already relied on the mana cores, which were nothing short of additional organs, so adding another wouldn't be too hard to accept.
Of course, that field had vast room to grow. Khan and the others explored it throughout the nights, running simulations and expanding on that still-vague idea. Khan had various available paths at his disposal, and many were worth pursuing.
The Fuveall technology seemed the most reliable bet, but Khan didn't forget about the Scalqa flesh's unique properties. The project of creating artificial organic mana cores had slowed down but didn't stop, and eventual breakthroughs could open new paths.
Theoretically, learning to cultivate organic mana cores would grant freedom over their composition. Khan's scientists could modify them to suit the living elements better, removing the need for an additional organ.