As much as Ves wanted to spend his time on examining, repairing, modernizing and upgrading the Otalon Sprius, he simply could not justify this decision at this time.
He was far too busy and it would take far too much time to get a juggernaut that was over 60 years old battle ready again.
Ves actually estimated that if he was able to do all of that work to the best of his abilities, a fully modernized transphasic hyper juggernaut with additional flight capabilities may actually be of greater value than was apparent on the surface.
First, no matter whether it was controlled by a single pilot or multiple ones, it was enough of a mech that Ves could theoretically make it alive.
Attempting to breathe life into a juggernaut could yield a lot of benefits, but also had the potential to produce a huge man-made disaster.