GoDaddy shared cPanel hosting
really encourages you to buy a cert from them (extra $). It is also possible (if you're fairly expert) to use
https://www.sslforfree.com/ to get a cert from letsencrypt (free) along with public/private key set. It can be installed using the cPanel SSL screen, but.. it's not too easy. sslforfree has a tutorial at
https://www.youtube.com/watch?v=K90RxdQp9OE on how to use cPanel/SSL to install the cert for your site.
When I hosted the SWN network on a GoDaddy cPanel site, I used that method. I've since moved SWN to my VPS hosting, and the Plesk panel has built-in support for LetsEncrypt certs (and automatic renewals, since those certs are only good for 3 months).
The Saratoga templates are HTTPS ready (AFAIK) if you are up-to-date with the current distribution. Your mods/additions may need to be screened for http links to images or JavaScripts -- only one instance will break the padlock due to mixed http/https content.