Multisite domain mapping plugin problems and issues

Ok my problem is unique, and i was looking all over the web to see are other people having the same problem but i haven’t had any luck.
Ok i have a main MU site (example.com) which is running wordpress multisite feature on it. I also have 20 more site’s that will go into that network with different domains, not subdomains or subfolder. For this feature i’m using the MU Domain mapping plugin that i’ve used before and it was working perfectly.

On this new sites i need this. I need to run the whole MU but have a different ipadressess for 4 sites and so on.
An example of the structure is like this:
Main site is example.com and all of the rest use dommain mapping for specific domains so they are not subdomains of that one.
But the thing i need is that every four site use specific ip. So the structure is:
example.com /main 0.0.0.1 ip address
example2.com 0.0.0.1 ip address
example3.com 0.0.0.1 ip address
example4.com 0.0.0.1 ip address
example5.com 0.0.0.2 ip address
example6.com 0.0.0.2 ip address

So basically we have 4 sites with the same ip address and the again four, and again etc.