Equipment and Supplies
Okay, so five comms buoys, equipped with station keeping packages, ten laser head missiles, and three sensors drones.
(The Imperial rules on warbots is that they must have a sophont's authorization to engage targets in narrowly-defined parameters. "Shoot anyone who threatens me" is too broad, as an example.)
Two light warbots with lasers and light MGs.
Two two-seat speeders with mounts for light missiles (think AA and AG missiles like AMRAMMS, Sidewinders, and Hellfires), gun or laser pods, plus ammo loadouts for them.
Two maintenance bots with EVA capability. These can be fitted with a wide array of tools and lifts.
One air raft (think large SUV with covert armor), with weapons mounts like the speeders.
All of these are grav vehicles with TL-15 fusion plants and HEPLAR+ propulsion, so they run on hydrogen.
Joxe suggests two battledress suits with Imperial Marine loadouts, plus two suits of combat armor and the "morgue" to support them. They will have to train with them, but it's the next best thing to having a tank wrapped around them.
All of this leaves them with twenty tons of cargo space, plus a spare crew cabin and two empty passenger cabins for up to four people.