Work on opencart

1) When ordering, you must provide a charge extra cost (it is possible to formulate a paragraph – ordering), if the price to 10$ then the sum will be equal to 1$ , then 10$ to 49$, the sum will be equal to 5$ , from 50$ to 150$ – an amount will be equal to 10% of the order value
2) set module bus/drives (configured on separate page)
3) install and configure plugins – Import of goods in oak and VC

Waiting for Your suggestions on price and deadlines
The usual payment upon completion of work