Hi Kiley,
Good luck with your capstone project. Typically, for someone who has installed one or two times, successfully, may take only several minutes; especially, with the recommended AWS cloud deployment and the installer. If it's your first time and depending on how seasoned you are and going through the installation guidelines, and so on it may take several hours. Generally, the installer takes only a few minutes.
My suggestion is to follow the installation instructions for a default installation to first familiarize yourself with Sahana EDEN functions and features. Thereafter, consider localizing it for the city, turning on and off modules, etc. This would also include setting your geographic boundaries, languages, and so on.
all the best!
Nuwan