Powerpoint design for c. 50 slides

Information on the business: Media consultancy
Kind of design: Full presentation
Target audience: Industry
Number of slides needed: c. 50
Data and special elements to include: Charts will include data to be presented in a creative way - with images, graphics, different types of chart etc
Ideas for the visual style: There is a template to work with
Things to avoid: We don't want a standard presentation of data
Extra notes: The job is for a presentation for a big broadcaster about social media and TV to take out to the industry. We will have all the material, script and data on the slides (in note, imported chart and text form) but it will need to be designed to a professional, creative standard. We are looking for something beyond barcharts and a set template. I'd like to see a couple of example presentations before giving the job. There will be drafts to do and review - I expect at 2 iterations max. (if it is beyond the remit there will be extra budget.) I am estimating this will be a maximum of 3 days work but could be 2 days for someone quick and creative. The presentation will be ready by the end of this week (1st November) and need to be completed by Wednesday following.