Sorry if posting in your thread is something I shouldn't do, but since you're focusing on the Russian translation first, I went ahead and started my own English localization patch. Since the English localization is there in the PS4 version, I'm just porting it over to PS3 and changing stuff as necessary. I used BitesZaDusto-94's ported textures which work fine in the game.
I'll also be removing the copyright evasion stuff, so I already restored the original names for every character/stand, excluding the Character Select/Free Battle names as those are UI and I'll need to edit them directly to change stuff (Like "Jean Pierre" to "Jean Pierre Polnareff ").
So far I completely translated the Mode Select menu, every character's name, Options Mode menu, Free Battle menu, Old Speedwagon, Loggins/Messina and Melone's speech, Battle Explanation Tutorial and some stuff in the Character Customization screen.
I won't be posting a direct link to the patch here since that may be considered as boarding your thread, but if anyone wants the patch just PM me and I'll send it to you.