Don't do it
I was brought in with a clear understanding of what I was asking for, as I have done this kind of work before. And a promise that I would get paid those wages. But, I was lied to. I wasn't paid for some of the work I did, I wasn't paid at the rate I was told I would get. And, for jobs I traveled to, I wasn't paid travel time or mileage.
Plus, they did not take payroll taxes from my check, so eventually, I would have to be paying all of those. Managers making false promises. If you want to spend money for the jobs that you do, I'm sure that makes the company happy, but it won't do much for your own bottom line.