One brief for each bidding supplier
A buyer with a fixed opening date and a tight access road needs the same assumptions in each bid. We record module dimensions, occupancy, quantities, climate criteria, interiors and the window for offloading. Where an input is missing, the comparison marks which offers depend on it.
A scope sheet distinguishes installed wiring and plumbing from incoming services, field hookups and commissioning. It gives the buyer a row to price each exclusion before comparing totals.