it's a lot of work and effort for something that would never work. We have a hard enough time getting 40 people highsec much less the trouble of getting people out to low or null.
You also overestimate the value that we'd bring to whatever nullsec group that 'hires' us. Incursions are not terribly difficult content. The fee they'd charge us to allow us to fly in their space and use their ships to run sites would likely cancel out any extra isk generated.
Also, running 8 sites an hour is only possible with 40 people with optimal fits. No way we'd achieve that with borrowed ships