Build a Website for Unifi

Hello, I need to modify a page for an hotspot (Unifi). I would like to have a file with all the option. I will take that for template and modify the option for each client. Need to add the option to have two language. Option to have 2 logo at the top Option to have image background. If not, it will be black. Optimize for tablet, computer and phone Option to modify the footer Budget maximum 105US. Thanks, Marc