Hi,
I can certainly help you with two things:
1) Account structure: I can help you with organizing your account, adding some necessary filters, creating Views and Properties, etc. I will prepare the structure and train you on that, so you don't have to worry about the organization moving forward.
2) I will create a roll-up property so you can see all the traffic going back-and-forth between the websites. You mentioned you have 30 websites, so I would imagine you have a lot of overall traffic. I make a property so you can see them all in one place.
I also have a question for you: Do you use Google Tag Manager or not?
Please let me know what you think, and how else I can help you in this project. Also, please check out my profile, and let me know your questions.
Best regards,
Zee