As I am a certified Developer and Admin, I can finish the task within the specified time period, this includes requirement gathering, development, unit testing and will support if anything required from your end.
As per my understanding of the project, there are some modifications to be done on the existing visual force pages, one is where a user inputs the form and the other is to have a preview of his input and even using DML operations, the data should be saved in the database(object) in the form of records.