Hello Omikron!
I am just going to throw this out there just in case. Our 5/8M team (Should soon be 6/8) will be in need of a tank in 8.3. We have room for the Fire Mage immediately. I am not sure if you have a ret set to raid with until 8.3 hits. We raid Sat/Sun 8-11PM Server time. Our team is led by a CE Raid Leader and our officer team has been around for 1-2 years, depending on the officer. I have included our Forum link below which has our website listed. Best of luck in your search!
Thank you for your time!
~Unholy