Is $9,997 to demolish existing stairs and install new 48" wide x 19 riser stair assembly a fair price?

This quote covers the demolition of existing stairs and the installation of a new 48" wide x 19 riser stair assembly from the deck to the landing, landing on grade. It includes the re-installation of existing railings on the new stairs, with additional materials likely needed, and the installation of treated treads and risers. The quote details materials, labor, and miscellaneous charges. - Materials: Treated 2x12's and deck boards, all deck fasteners, and miscellaneous hardware included. - Labor: Daily mobilization, demobilization, and staging for 9 days. - Labor: Demolition of existing stairs, saving railing for possible reinstallation. - Labor: Installation of 4 stringers x 19 risers each (total 76 risers). - Labor: Installation of 72 SF of step treads. - Labor: Installation of 76 LF of stair toe kick. - Labor: Installation of 40 LF of stair rail or less. - Miscellaneous Charges: Dump fees (2.00% of total sale). - Miscellaneous Charges: Site plans and admin charges (1.00% of total sale). - Miscellaneous Charges: Fuel, insurance, and overhead (2.50% of total sale).