a) Pay for crafted 72 gear.
b) Join a guild and get them to run you through TFB/S&V HM to gear you up.
Option a) is easy, but very expensive and you won't get setbonuses.
Option b) can be hard since guilds farming HM are most likely progressing NiM, and won't use lockouts for HM. Some guilds might want you for NiM progression, and got alts to gear you up in HM. Finding a good guild is hard, very hard, and requires a lot of luck as well.
With that many classes, you can pick a class a guild needs, giving you more options. I'd recommend mara/sniper dps, guardian/PT tank or sorc heal.