I think what you are requesting is kind of not a standard document.
When running a team, some things work different for all teams.
The best advice I can give you, is to test out team structure formats until you find the right one for your team.
To start you off, I will give you an example of my team.
We have a strong mentor base between parents, and also engineers and other non-technical mentors from the community.
Our school backing is almost lacking other than the fact that we can work there and for budgeting we can fall back on their account and use that as a buffer till we raise the funds.
For leadership, we have some student leaders in each field, and some parent/mentors leading other ones.
For travel and what not, parents/mentors do most of the footwork, and for electrical and mechanical the students do most of the footwork.
It’s all a fair and even balance as far as we are concerned, and just works for us.
Could we improve?? Absolutely. Could we recruit more students and be totally student run in every way possible? Absolutely. But, like I said, I think a nice balance of mentor and student run parts of the team is key, and finding that balance in your situation is the biggest thing you need to do.
Also, a well run team usually comes with experience.
I will almost guarantee you that every team that is not a rookie this year, if you ask them how they are organized this year as opposed to their own rookie year, they will tell you they have improved organization ten-fold since then.
Good luck with your own team.