Any state agency or political subdivision that has acquired or constructed or which desires to acquire or construct or which has financed or which desires to finance through the issuance of its bonds an eligible facility may apply to the State Board of Finance for state assistance in paying the debt service requirements, including principal, interest, and trustee's and paying agent's fees and charges, on bonds issued or to be issued by the state agency or political subdivision to finance all or a portion of the eligible facility and capital improvements related thereto and any amounts theretofore expended by the state agency or political subdivision from its revenues to acquire or construct the eligible facility and capital improvements related thereto, increased by an annual rate of interest equal to the average rate of interest to be paid on the bonds issued to finance the eligible facility.