STERN have between 30 and 200 workers depending on how many machines are required to be built and the amount of titles that are on the line.
Alot of the workers are building assemblys that can go onto the line which requires a min of 30 people once all the bits n pieces are ready to go.

Every worker apparently learns all the work stations so everybody is multi-skilled and this makes it obviously more interesting for the workers and more efficient for Stern.

Not sure about the hourly rate, but I am sure with the USA economy being very slow still, anyone who has work there would probably be happy to be recieving the income versus being on food stamps.

I dont need the red batphone, I have a bat email address.lol