i would join, but that means making a new char, and i really cba to do that agan haha, my Florin is lvl 70, and with the expansion coming out soon enough, i dont want to start a new char knowing i wont get to lvl 70 before anything i do will really count, but im still rooting for you all!!!
hope it goes well, there was something similar on stormrage, they called it fusion, but that wasnt successful, well, they done well... but they broke up because of ninjas, im sure you guys wont have a problem with that though, i mean, you all sound to be great friends

even if there was a guild on stormrage from you guys, i still couldn't join, and my loyalty belongs to the shrubbery!, got some real cool friends there, and its also where i met my love of my life

but still, i talk to everyone from the guild, and, though i havnt been on for a few weeks, i have a planed return to the wow!
ive done quite a few instances as a leader... it was hard cause i was tanking too, lol, but if you ever need any suggestions / tips / or advice / or just someone to poke, i can always try to help you with that

i know a few of the dungeons of the back of my hand, infact, none of them are on my hand... wait.. thats not what i meant... i know a few of the instances through, so i could give a guide if you needed it, but it depends on how long you want to make the guide, i write alot of things, mainly love letters LOL!!! but anyhow, i think im a good writer because im not biased, although i dont like the horde, as much... lol...
if i found the time, then id do a few guides if you would like me to ofc, just let me know

Good Luck!!