I am looking to bid on a job it is about 30 acres going to have 4 guys on it I will be using 2 ztr's 60inchs and one 52 ztr it is mainly mowing. just really long berms. but the kicker is it has to be done once a month . there is some trimming around a couple lakes we do about 8 acres in 2 hours with 3 weeks worth of growth . mowing with just two 60inches any ball park idea for a price? I am thinking it will take 10 to 11 hours, am I out of my mind ???