ok so i got a job to bid on at a universtiy down the road. They are asking for 457 plants trees shrubs etc, plus two paver patios at the top of some stairs on on the north end and one on the south end of the building. One patio is 22 long by 16.6 ft wide. and th other is 22 long by 18.6 ft wide. how can i determine labor for planting plus to do the pavers. I know that i need 44 yards of aggregate material and 3 yards of sand. thanks for the advice. biggest job i have ever bid on.