I've recently been playing a lot more arranged 5v5, and my team would like to get ourselves arranged in a certain pick order because we don't all own every champ. Basically I'd like to know if there's a certain invite order or method to get us arranged in our desired order.

I'm not no master or anything but..
Support, Jungle, ADC, Mid, Top. but that's personal preference.
I'm a little confused on your question cause I'm a little slow . lol.

We know what order we want to be in, but when the party leader invites us all, even if he invites in the order we want to be in, it scrambles us up.