The budget for this project can be estimated based on the scope of work, which includes demolition, foundation work, framing, roofing, siding, plumbing, HVAC, electrical, and finishing work. The cost of materials and labor for these components will vary depending on the specific requirements of the project. However, based on industry standards and average costs, a rough estimate for the construction of a single-family home can range from $150 to $300 per square foot, depending on the location, materials, and features. Assuming an average home size of 1,500 to 2,500 square feet, the total construction cost could range from $225,000 to $750,000. Additionally, the payment schedule includes five draws, with the final payment contingent on the completion of all work and the receipt of a Certificate of Occupancy. This suggests that the contractor will be paid in installments as the work is completed, with the final payment being the largest portion. Therefore, a reasonable estimate for the budget for this project could be between $250,000 and $600,000, assuming an average construction cost and a payment schedule with five draws.