(a) The actual cost of the construction of any part of any project which may be constructed, including architect’s, engineer’s and legal fees;
(b) The purchase price of any land necessary therefor;
(c) The purchase price of any part of any project that may be acquired by purchase;
(d) All expenses in connection with the authorization, sale and issuance of the bonds to finance such acquisition; and
(e) The interest on the bonds for a reasonable time prior to construction, during construction, and for not exceeding one (1) year after completion of the construction.