Implement existing PHP website on company servers & implement social media user registration (was on a hosted site)

I would like to install my website on my company's physical servers. I have already discontinued using [login to view URL] which I was using before to host my site and what remains to be done is: - Implement PHP website code to implement code on my servers & domain - Integrate social media signup functionality/user registration function (Google, Facebook, Twitter) which have already been implemented in the code with the company facebook account page. - Integrate payment gateway which has already been implemented in the site code. - Google Analytics needs to be integrated on site and from Facebook site - Engine is built upon Laravel Spark - Code includes java as well - The site needs to look more clean than it currently looks, which should not be too much effort at all. right now it looks like it is a bit old by way of the design used.