Amazon campaigns and ads management

I am a Amazon seller and looking to increase the sales via ads and campaigns. I am looking for a expert team who have a potential to get the sales from 50 products per month to 1000 products per month. I deal in toys category and currently have only one product. I am a new seller started a month ago.

What I need from the bids:
- Duration of campaign to achieve 1000 products sale per month
- Cost of ads and services