You could always use your main domain as cname, as long as that is one using our name servers (like the .elementfx.com sub domain you currently have as main). You'd have to place the domain you want to retain control over as add on or parked in cPanel (Parked works essentially the same as your main domain does).
For A record the IP of your server is: 216.245.205.66 (Note that this might change in the future)