Building Complex Sales Projections - could use some help

I've added a basic version of the model - the customer information tab is the assumptions page - the transaction volumes page is filling the data per the assumptions & Ive also added a resource requirements page. The trick Im having is pushing the results based upon the date and the duration. I'm lost there. I've basically just entered the data into the sheets that the assumptions page will feed for now until I get this figured out. I'd like to have this be a model where we can change the assumptions page and dynamically have the spreadsheet change.

Thx Steve