Create an Animated Explainer Video

We need a 3-4 minute animated video for explaining a service concept. The script and the flow of the video is ready in a word doc and needs to be portrayed through an animation like [login to view URL] We will need an american/british voice over for this to read out the script we have made. Need is urgent and final product is to be ready by Friday (09 May). We can pay you some money extra over your bid for the urgency :) Attached is the script with broad pointer on what the animation can be like. Exact ideas free for the designer to create.