So I'm looking at bidding a 4.5 acre clearing job for a school nearby. They are putting in some more athletic fields. The 4.5 acres have a variety of maple, oak, ash, elm, and other various trees native to our area. Trees can be cut flush to ground or as low as you are able to. The excavation contract will be taking care of stumps during the next phase. I have no issues with taking down the trees as I can use about 90% of them for firewood. The rest like the dead/rotted/softwoods I can haul away and dispose of for free. My only concern comes with chipping all the branches. Once the trees are bucked they will be separated into piles depending on if we are keeping them or disposing. The brush off the trees needs to be chipped/hauled away. They don't want chip piles left on site. All underbrush is small enough that it can be hit with a rotary mower on a skid steer and that remnants can be left on site. With the rates I've heard of for our area, I can't understand how some companies devote the type of equipment to the site. The chipping especially. Small bc1000's run about 4-500 per day. I haven't really been able to find any small horizontal units that can be feed brush/branches via an ex for rent at all as that would be my go to method. What are your thoughts?