The tank demand

Ello there I am looking for people's opinion regarding warriors demand for 5 man tanking vs raid tanking and dps.
I am going to play a warrior and rush to level 60. Im bringing 7 other friends which were some of the best players on Kelthuzad US back in the vanilla day. Im going to be a prot warrior and getting both my pre raid BiS for tanking and also for Dps.
Problem is that I have a fked up working schedule which means I will not be able to be a reliable raid tank for a guild. I know that there is usually an abondance of warrior dps so im scared I will never be able to join raids as a dps warrior and be able to roll on gear.
What do you guys think? Should i just roll a mage like most people will and sit in orgrimmar looking for a tank for my 5 man for hours but THEN have an easy time getting into raids ?
I am going to play a warrior and rush to level 60. Im bringing 7 other friends which were some of the best players on Kelthuzad US back in the vanilla day. Im going to be a prot warrior and getting both my pre raid BiS for tanking and also for Dps.
Problem is that I have a fked up working schedule which means I will not be able to be a reliable raid tank for a guild. I know that there is usually an abondance of warrior dps so im scared I will never be able to join raids as a dps warrior and be able to roll on gear.
What do you guys think? Should i just roll a mage like most people will and sit in orgrimmar looking for a tank for my 5 man for hours but THEN have an easy time getting into raids ?