A hundred kilometers was a large distance on land, but only a brisk flight in space.
Thousands of additional Larkinson mechs had deployed in space, but not because they needed to escort the second expert mech of the Larkinson Clan to its destination.
They weren't needed to protect the Sentry Project. The chance of the expert mech malfunctioning was virtually zero at the moment. If the mech contained any major flaw that could cause it to deviate outside of its optimal performance standards, then it wouldn't have become a masterwork in the first place!
A lot of bots went ahead and prepared the large region of space instead. While it was impossible to hide any laser beams that surged past the interference envelope and continued to soar into the distance, the Sentry Project itself would at least maintain some privacy.