Regards
My name is Pablo Castro. See bellow my schedule plan to complete this project (assuming that this is only a 2 floors bank office) :
day 1: first contact with client, questions, cooling load calculation.
day 2 and 3: first system sketch for approval (includes equipments selected and location, duct and pipe paths, grilles type and location)
day 4 and 5: dimensioning of ducts, pipes, grilles, schedules, etc
day 6 and 7: making of plans.
day 8: first presentation and review
day 9: corrections
day 10: final delivery.