Normally SSL configuration is pretty simple. But if you want us to take this work off your hands, we understand.
What we need to do can vary by setup. The end result will be that your site is displaying properly at the HTTPS protocol and old incoming links, as well as resources are redirecting properly. Many hosts offer a free SSL certificate which we recommend in most cases. Some sites, particularly those selling things, may want to invest in a more advanced (read: secure) certificate. The cost of an SSL certificate is not included in this service.