The next milestone for your Final Project deliverables includes completing the following steps
Set up your final projects (create initial folder structure)
Host the project on Github, you will be pushing changes to Github periodically
Create your page layouts (in html) using your wireframes as guidance
You can use flex or floats (although, you should be open to change your decision if needed)
Do not focus on content or style, just focus on layout; high level structure of your pages (i.e. boxes and containers)