Question $2($Bill Of Quantities$)$

As a subcontractor you have been given a job of doing a certain portion of a big project by the main contractor, you will need to purchase $300$ bags of cement at R$520$ each, $1000m^3$ of sand that cost R$20/$m ${?}^3,2000m^3$ Aggregates that is $\frac{18}{m^3},8$ Doors at R$4000$ per door and $8$ windows that cost R$6500$ per door. Calculate the total amount of all the material required, by using a Bill of Quantities according to south African standard.