"Repurposing..." Ken thinks about this as Wormmon finishes his latest vine cluster and drops off for a break. He can keep going! He is sure he can! He can do anything for Ken-chan! But....blech.

After thinking it through, Ken nods. (Is it just him, or does Tidus seem....less upbeat...than usual...?) "It's possible. This whole system is supposed to be self-sustaining. Spare parts would be useful."

It's not an idea he would have thought of, either, but it makes sense.