To set the location where MC saves ripped CD files go to
Tools >> Options... >> File Location >> Audio (CD rips and Podcasts)
There you can set the folder and the naming rules
To copy files from your C:\RIP folder use the Rename, Move, & Copy Files dialog
Tools >> Library Tools >> Rename, Move, & Copy Files...
or right-click on selected files >> Library Tools >> Rename, Move, & Copy Files...
What you'll likely want to do is add C:\RIP to the folder(s) that MC watches and auto-imports to the library.
That will get the new files added to the library. Then you can right-click on the new files and use the Rename, Move, & Copy Files dialog to copy them to the location you keep your music files.
The Rename, Move, & Copy Files dialog is complex and powerful. Be careful when using it. Double-check things to make sure it is going to do what you want before hitting the OK button.
Wiki page for Rename, Move, & Copy Files here:
https://wiki.jriver.com/index.php/Rename,_Move,_and_Copy_Files