I think contracts like those are just drops in the ocean. For every seperate Forward Operating Base a drone defence will/does need to be established. This may even go down to patrol level, drones are already a massive problem.
For each deployed system, 1 has to be held in spare. Defence contracts require enduring service level agreements, rapid replacements, help desk functionality and user training. Only Australian based companies can really offer all of this and nobody is coming close to what MESMER is capable of.