The total value of the contract can be estimated by calculating the total cost of all the items listed in the contract. Based on the provided information, the total cost for each vendor is as follows: Chemung Supply Corp.: $3,612.50 + $3,825.00 + $8,550.00 + $18,170.00 + $9,600.00 + $4,800.00 + $10,675.00 + $11,700.00 + $48,000.00 + $6,800.00 + $7,200.00 + $10,680.00 + $16,250.00 + $1,500.00 = $156,962.50 H.A. DeHart & Son, Inc.: $9,238.50 + $1,180.00 + $4,470.00 + $16,141.00 = $30,929.50 John Guire Supply, LLC: $13,950.00 Winter Equipment Company, Inc.: $3,642.00 + $3,868.50 + $8,193.00 + $22,440.00 + $9,651.00 + $5,107.00 + $10,216.00 + $11,351.00 + $37,452.00 + $18,240.00 + $19,400.00 + $20,520.00 + $26,100.00 + $31,900.00 + $20,820.00 + $7,455.00 + $19,130.00 = $252,014.50 The total estimated value of the contract would be the sum of the total costs for each vendor: $156,962.50 + $30,929.50 + $13,950.00 + $252,014.50 = $453,856.50.