4. Calculate the present value of the proposed overhaul of the Maracas, with and without the new engine and control system. Should RN] do the basic overhaul or the expanded overhaul with the new engine and control system? For the moment, ignore the option to purchase a new vessel (you will evaluate that option in question 2 below). Write a few paragraphs giving your answer and clearly explaining your reasoning and computations; show detailed computations in your Excel spreadsheet labeled Exhibit 1