enerator Foundation & Mounting Slab 3,200 Screen Walls (if needed) MC Removal & Replacement of Landscaping NIC Contingency for unknowns 3,000 Plumbing Work for New Gas Line 3,500 Subtotal 91.400 Permits 2,742 Contractor's Overhead and Profit @10% 11,297 General Liability Insurance @1% 1.054 Budget Total $ 106