In the event that, in the discretion of the Mayor, it is necessary that the Town maintain an inspector in constant attendance upon any work performed under the provisions of this article, then the applicant shall be responsible for, and shall reimburse the Town its full and total costs of such inspector during the time that he is actually engaged upon such project in such inspection, including the salary or wages of such inspector, retirement fund benefits, social security benefits, workmen's compensation, all costs of transportation incurred, and the reimbursement for any Town equipment used by such inspector in and about such project, like payments shall be made for any such additional inspectors. If more than one inspector shall be necessary upon such project, like payments shall be made for any such additional inspectors.