I got bored tonight, and found out how to mod Rebirth;1 and did so, since I'm finally playing through this grindfest!
Installation is simple, all you need is to snag yourself a copy of KitServer from the Hyperdimesion Neptunia Rebirth;1 Steam Community, install that, and then copy the folders in the RAR into your root Neptunia folder. Then just run the KitServer and bam! Titties!
This should cover all the CPUs in the game, as far as I know - Mind you I'm only at chapter 4, so chances of other CPUs showing up is quite possible!
Once I get to the point where I can easily access swimsuits, I'll be making those as fully-nude as I can!
I'll also, later, edit these onto the other CPU bases. They currently are only on the default