Without knowing requirements it is very hard tell that , how much time your requirements exactly need and what exactly you want.
So my tips for buyer is before make any order consult with seller and give him a clear concept of your job.
Then ask him time and price.
It will help you 85% times to avoid confusion with seller.
Also it helps you to get a good seller in reasonable price.
So my tips for all buyers that consult your task with sellers first