I just did a 3 yard job similar to what you describe. There were three of us on the job...working non stop...took us three hours...or nine labor hours. That to me was insane...but...it was all filling up wheelbarrows and hand spreading. We would place little piles with pitch forks or dump piles where we could and one employee would just hand spread. I had to adjust my per yard rate for this job cause I wasn't going to make a dime.