Emulate the PS2 version, then use filters to upgrade the graphics if you're a graphics-whore (check the faqs in the Emulation thread), then you're set*. The remastered edition is a lazy adaptation, and chances are it will be brought to the PC at some point in a lazier port. The changes brought by the remaster are minimal (DLCs that include new music, new shops with near-cheat items, the 'save anywhere' function, rewriting the script slightly and censoring some dialogues because *modern day*).
*There's a special edition, the Chronicles Maniax, exclusive in Weaboonese but was fan-translated. You can check it once you know enough about the main game, as it changes a few things.