You need to realize a complex plant
but you have many doubts, as:
Given that EXCO is paid with a MarkUp on purchases, it will have an interest in paying expensive supplies, so it earns more!
It’s not true! At least three supplier offers will be presented during the Final Design phase; the Customer’s Purchasing Department can actively participate in the purchase negotiations. EXCO recognizes a percentage of the discount obtained during negotiations: EXCO and Customer win together!