Bootstrap 4 and upload the site to own server

I have a ready page build with bootstrap 4 and now I want to rebulid it with wappler. It is a static page without db and I have some question before use wappler…

1. Can I use my css and js from the “normal” page for rebuild?
2. Can I use wappler to include the head, navigation, footer so that I didn’t must copy for each pf the ~ 70 pages the navigation (like a frontend-controller)
3. I have a own folder of the server - can I upload my wappler-site and does it work?