You should probably get the CM gear, then worry about it. It isn't as easy as it sounds.
Easy if you buy it. I paid gold for mine, ended up being server rank 3rd warlock and in the top 2k worldwide. I guess I didn't need to buy it but I'm short on play time and it took like 2 hours on the weekend.
Driveby comment: If you're pushing for like realm best times or some shit CMs might be difficult but just going for gold is not at all hard if you go with mates/guild and can get some voice com going on.