I have a long experience installing SSL certificates on Apache Servers and also renewing them periodically.
First I will install the SSL module of Apache with all the dependencies required.
After that, I will configure the Apache Server with the certificates. If you don't have the SSL certificates I can help you getting them from a trusted CA (Certificate Authority) or autogenerating them. It will we depending of your business needs.
Finally, I will test the correctness of the Apache Server with different devices and browsers of the certificates recently installed. In addition, I will make a SSL Security Assesment in order to check the possible vulnerabilities of the newly certificates installed.
Thanks in advance!