RadiusDesk login page customization

Hello, we would like to use RadiusDesk as a hotspot solution. We would like to change the default login page logics and design. Job description * create new login pages from mockup * implement on current running radiudesk * implement with radiusdesk backend editable fields and images used in login page * implement new logic - what should happen after login ( our simple flow will be: login page -> click -> page with advertisement ( ads loaded from external AD server - video, text ads, image ) -> if click on ad, then user has to wait 10 seconds for internet access, if no click, user has to wait 20 seconds. Experience with previouse radiusdesk customization is preffered. Thank you.