All of the lessons in this unit are designed for 45-minute classes, unless otherwise stated in the description. There are in fact several lessons which require multiple 45-minute class periods to complete.
A general calendar for the project would look like the following (keeping in mind that each class will vary according to student attributes, teacher needs, etc.):
Topic 1: 3-4 days
Topic 2: 2.5 to 3 weeks
Topic 3: 1.5 weeks
Topic 4: 2 to 2.5 weeks
Topic 5: 2 weeks (although you can cover other material during this time)
Topic 6: 1 week
Another factor that will affect the pacing of this project is whether or not you choose to assign any of it as homework. I have written it under the assumption that all work will be completed in class. Assigning any amount as homework will obviously reduce the class time required.