[@LokiLeo789]
Hm.....

Your post ....
Hm.....
I have a few issues, but you will only have to change it if Caits says so
My issues are, invite people, randomly like that, and over such a spread. Inviting people who you are with, and with friends is one thing, inviting everyone is a little ... I don't think it would be allowed ....

Full party is 6 apparently 
(From the SAO wikia)
[quote]The maximum number of players that can form a party is six. Eight parties (or groups) constitute a complete Raid Group large enough to challenge bosses. [/quote]

Lastly is the message, just unsure if you could send those to people you did not know the names to.

Anyway, minimum change is the full party part, and possibly need to change the invites, I'll let [@Caits] have final say