(b) The State Public Works Board may issue revenue bonds, negotiable notes, or negotiable bond anticipation notes pursuant to the State Building Construction Act of 1955 (Part 10b (commencing with Section 15800) to finance the acquisition of the facilities authorized by subdivision (a) by exercise of the option to purchase. The board may borrow funds for project costs from the Pooled Money Investment Account pursuant to Sections 16312 and 16313. The amount of revenue bonds, negotiable notes, or negotiable bond anticipation notes to be sold shall equal the cost of acquisition by exercise of the option to purchase, any additional sums necessary to pay interim and permanent financing costs, and costs to issue these bonds. The additional amount may include interest and a reasonable required reserve fund.