So folks, I saw these overhead bags on SuperATV's site, said they were for Polaris RZR's etc, but they were under the CF Moto Z800 column...hmmm....
So I called, and asked the Lady there is they would really fit in my Z800...."yes, they will, no problem".

These puppies are miles off from fitting overhead. They might have fit the 2015's or older, but not mine, a 2016.
Here's the link to them, I should have looked harder, I could have figured out they'd never work if I could JUST READ THE PICTURES....(LOL).
http://www.superatv.com/Polaris-RZR-Overhead-Storage-Bag-P425C1734.aspx

So; I'll call them on it on Monday, and I'll keep the bags, have a set of the Russian Doors coming, that got shipped almost a week ago; my hope is that I can hang them on the insides of the doors, let's see if I can do it with less than 40 tie wraps & 11 bungee cords...    

[2015 Z Force 800 53/Trail EPS]

Hmm..how about on the bars between the seats on the back?

I saw those and wondered about it. The RZR cage is completely different than the ZForce cage.