Well, I've been at this for a while, and I think it's beyond my brain. I extracted wav samples from the sf2 file, and that's about as far as I got. How I'm supposed to loop it all together (using what?) is beyond me. I got something called vienna and I felt like I was staring at the controls of an alien spaceship. I really can't do it myself, I need to hire an expert of some sort, but it's such obscure stuff recreating those sounds, I worry that it might be a secret recipe that only Uematsu knows using antique machines
I did find this though. Seems like they are using the sf2 file, sticking to the instruments that sound good (flute, strings2, and the brass instruments)