Any public agency may request the district to approve a regional plan for any project and for such purpose is hereby authorized to appoint competent consultants, engineers and/or other technical personnel, to be approved by the district, to prepare an analysis and feasibility study of such proposed project, which analysis shall include the plan of operation, the financing to be provided by each public agency and the source of all anticipated revenue, estimated expenditures, the estimated cost of construction, where required, the estimated cost of lands, properties, facilities, machinery, rights, easements and franchises to be acquired, if any, the estimated cost of engineering, architectural and legal expenses and all financing charges and interest, and such other estimated receipts and expenditures as may be necessary or incidental to such project, together with a projection of the gross and net revenues anticipated from the net operation of such project, and any proposed option, contracts or commitments involved in such project, and such other information as may be required by the district.