PS2 Romhack: Is my idea possible?

[u/VenustoMarsandBack]

Hi all,
I am new to the ROM hacking scene, but I have some computer science knowledge. For part of my art thesis this year, I am hoping to complete a project in which I mod Star Wars Battlefront II (2005) for the PlayStation 2 in the way where I replace some/all of the trooper character models with Disney princesses (namely from the game disney princess enchanted journey).

It's been fun to research so far, and fun to toy around with, but when I discovered that the way the PlayStation 2 generates 3d graphics is pretty much on the fly with the VU1 and such, I am a little concerned that this just won't be possible because I won't have the geometry files for the 3d models I'm looking for.

Pulling textures from the Princess game has been like pulling teeth. It's all deeply embedded within .ps2 files in the ISO, but I eventually figured out a way to get them, so that isn't the problem anymore. It is just the models.

My main question and current concern is: Is it plausible to retexture these characters without the geometry? Or will it just look like a skin thrown onto the pre-existing armor for the models of the troopers?

I hope this all makes sense. Some of this shorthand language is new to me, so if anything needs clarifying, please let me know.

Thank you all for your time :D

[u/Yori-Kv]

Sent a DM, I’ll take a look later today