Hello,
I am 3.5years experience magento2 developer.
I can install and setup the responsive website on your server, and also will install the social login plugins.
And will also help you to setup the site for the multiple language, and for these basic setup we will need 2 days of time and $140.
And for the template design, you can share the screenshots, we have a designers with magento 2 designing knowlege to work on this, and they will deisng a proper and better pages, the time and cost for the template designing will depend upon the images you provide.
Thank you