Info about usage of Ultimate Member FREE

Good morning, before downloading your free plugin I have to ask you some questions to see if it’s right for me.
1) Can I use my template that I use on my wordpress site as the homepage and all the other pages of your plugin as secondary? I would like the user to arrive on my homepage made by me with a template purchased specifically, then go via a link on the menu to the registration and/or login page
2) In practice the project aims to take photos of the user in which they prove they have been in a place. When he has taken all the photos, I imagine we will then use the posts on social media as proof, the admin will physically reward him. The social network created aims only to make the registered user upload photos and nothing more.

If it were possible, I’d like the user to be private by default.
Thanks