Hello,
We can get this in place for you.
For the SSL certificates, Do you already have the certificates that you would like to install? If not, I can get you Comodo SSL certificates for $10.00 each per domain per year. Or, if you would like to use a free LetsEncrypt certificate, we should be able to get that service installed, and configured with your server.
As for the server, Is the web server Apache based, Or running NginX?
We can get this started today for you, and get you a full writeup that you can follow along with, and use in the future to recreate what was done.
Generally, the process for installing an SSL certificate in Apache is generally straightforward. You need to create the VHost file, and put the paths to the SSL files and web files in it, and then include that configuration file in the httpd.conf.
If you have any questions, Please let us know. Thank you!
~Boston