structural engineering

Details From the supplied drawings of are only available on pdf. The structure on view a metal barn. The barn as seen was presented to a metal stockholder and the quote was good. Hence, the improvements and alterations. 1) create DWG files that allow alterations width, depth, pitch roof. 2) create a Bill of Quantity with undoubtable clarity that can be sent to print. 2.1) create a final drawing that allows identification of all components within the Bill of quantity: number or ID each component on the this separate drawing and same on Bill of Quantity 3) Find all the errors 4) find all the missing component parts 4.1) add these to the final drawing 5) Roof pitch approximate 33 degrees. 6) more detail within the foundational steel work 6.1) BoQ for the above 6.2) detail attachment of foundational steel work to uprights of structure Examples of missing data, BoQ should state mm or cm. welds are missing on the upright where the roof beam adjoins no spreader plate? Unsure why the adjoining roof beam cannot sit on top of the upright, then be bolted into place? Concrete volume and type of concrete missing from BoQ. BOQ is page crowded additional data as per clients request if necessary. concern the roof beam may twist and would consider additional support beams and horizontal beams to create a second floor. Access steps at a future date so, no need to design at this stage. I have 90 bucks.