(a) The managers shall order a final hearing by 35 days after:
(1) the engineer's report is filed;
(2) the appraisers' report is filed; and
(3) the director's advisory report and the board's advisory report are filed or the time for that filing has expired.
(b) The order for a final hearing must set a time and place within the watershed district for a hearing upon the petition or resolution and reports.