I have had many servers, and I have come to know permissions very well... I can do any permissions for you, and anything else you need help with on the server, if you grant me co-ownership of the server...
I can make as many different ranks as you want, such as:
1- Owner
2- Co-Owner
3- Admin
4- Moderator
5- Elite
6- Member
Or any other namely ranks you want. I can do it all
Are you hosting your server on a website host?