Due diligence inspection costs

I am working on getting quotes for due diligence and when I am calling about the water and sewer, and electrical inspections the estimators are giving me huge costs to do the inspections. I just got a quote from an electrician to do an inspection of a park with 80 lots and he wants $1,600. I just asked them to look at the pedistals and power lines and made clear that we are not inspecting anything in the homes. Should I describe the work differently or just say that I want them there for “X” amount of time?

What should it cost to get the cameras into the water and sewer lines as well?

I am clearly doing something wrong!