I don't have much to add to the immediate need you're posting for - I'm simply going to agree with prior comments that you should take this disruption to your coursework structure as an opportunity to expand your knowledge a bit in the field. Even if your projected career path wouldn't utilize Revit, there's usually a point in the future where some preknowledge will help in coordinating with other disciplines or industries.
For what it is worth, there are workflows developed by users to partially automate construction of 3D models from 2D CAD. As a prerequisite they require knowledge of both software types, conformance to a certain set of drafting/modelling standards, and add-ins or scripted tools that translate one set of standards to the other. As a simple example, you can push 2D CAD walls to 3D Revit wall elements, but you need to have the background information that defines what is a 2D wall, what type of wall it's supposed to be, and what 3D Revit wall element corresponds to that definition. It's not something that's time-efficient for you to try and learn with a looming course deadline, but it's worth knowing if you ever do happen to dip into this aspect of the industry.
The difficulty in reconstruction, besides the learning curve, is going to be the design complexity of your original set of plans and elevations. If you have custom forms, nonstandard curtain panels, or just generally things that aren't simple layered walls, simple windows/doors/ceilings/roofs/etc., a significant portion of your time will wind up learning how to physically model the weird stuff. If it's a basic 5-story office suite with repeatable features, then following simple tutorials should get you 80% of the way there.
