@MichelleLynn01--- Oh, I love the idea of a fantasy RKC, what a great idea :D I'm so glad I inspired you to start your own RKC, I wish you all the luck putting together your town :)
Regarding CC, I do not use any CC at all :D what I do use a lot is the create-a-style tool, and buy items at the store. When it comes to create-a-style my tip is to find some patterns that you like and suit your purpose and save them to your favorites. For example, I use patterns with a rough texture for the lower classes and patterns with intricate forms for the upper classes. I recolor them and use a lot of brown and beige, I never use a completely white color and try to avoid bright colors.
Here are two examples:
https://ofkingsandcastles.files.wordpress.com/2014/09/peasant.jpg
https://ofkingsandcastles.files.wordpress.com/2014/09/royal.jpg
I think there are some great outfits in-game that only need a little bit of recoloring, but I guess my most use sets from the store when it comes to which clothes I make my sims wear are:
Tutor for TudorsPalace of VersaillesFarm Fresh Folk SetI hope this help :)