No, but I can help you to get what you want. In order to do that, I can send you my ifrit custom folder via message (cuz it have the plain binary of all the enemies in a sub folder part 1 and part 2, so you can modify them via ifrit GUI, just remember that bytes go from 0 to 255).
Once you modded all the enemies as you like, i can rebuild the .ppf for disc 4 (or another disc), though it might take a while, since I don't have much free time to spare.
Or if you have some minimal knowledge of hex-editors, batch programs and binary files, I can teach how to concatenate those enemy files, and patch the inner IMG file in the iso. So you can mod the game as you want whenever you like.
The ppf files were made with ppf studio v1.01b by Starbee, using psx/ps2 CD tab or process, so they can be applied to the iso with some program that understands the ppf format/patch (cuz is some sort of indexed list with the binary difference between the original IMG file in the iso and the modded one).
Hope it helps.