Hi How did you go up the textures?, I need those textures please could you send me the link?
For me, these textures are the best ever made for this game, thanks to some people on the DBZ Budokai Tenkaichi 3 ONLINE ITA discord server they managed reupload again the textures, so you can find the link there.
Also, I have found a tutorial to make this game work on widescreen on Dolphin, someone made a patch for it:
The game now on Dolphin, looks like a true remaster, For me, who wants the vanilla experience for this game, this was perfect.
A few screenshots: