Arkarium Expedition Questions

Trying to see if I can 2 man party the guy. Have some questions on the requirements of the party. All quesitons assums all party members is already level 120


1. Minimum is six people but ALL have to be logged on and on the same map? What about pre-quests (silent crusade chain) requirements?

1a. If no requirements to be logged on, then would it work if you form a party with multiple characters from the same account?

2. Also, can cygnus knight be counted as a party member against regular arkarium as well as the nerfed one?

It's the exact same as a Zakum expedition.