I am bidding on a shopping complex for year round maintenance. The total area is 176,177 square feet of turf area. I figured 176,177/1,000 = 176.177 times 1.75 ( 1.25 times diff. factor of 1.4 on a .5 - 1.5 scale) per 1,000 square feet. I got $310 per cut. Sound right? A good bit of trash to be removed also rough terrain, that's why the high difficulty factor. They also want pre and postemerge applied. What type would work best for bahia/centipede/crap grass-that's what I call it, the grass is everything mixed in together.I need to overseed in ryegrass this fall. However, the turf has no irrigation system. The ground is hard packed also. What would be my best method of overseeding to get a green look in winter and early spring? Do I just broadcast the seed 1 or 2 times? or should I rent an overseeder. But an overseeder would seem to take forever since this place is so big. What type of rye? I was wanting perennial since it will be easier to mow. What is your advice as to lbs. per 1,000 square feet? Thanks for any help!!!