One way to get the crew is to call the local dispatch office and ask for their contractor sales reps number. Tell him you want to keep labor and any pump charges down. The guys will want to finish concrete not move wheelbarrows, but you can debate it with them.Really the pump often makes sense.
Let the rep know if you are willing or not to take unlicensed people. Negotiate the price down with whoever they send.
You can probably easily find good people but there are advantages to doing it this way.You get people who always work together and you have the workers worrying about feedback to the sales rep.