A faithful recreation of an awesome piece.
Faithful, but not great. I think, with the soundfont you have, that you may be biting off more than you can chew by doing a straight-up remake of a song that was mostly orchestral in the first place. All you'll come up with is something that pales in comparison to the original.
So instead, you should try remixing it, adding your own personal flair and style. Experiment with different instruments, add new riffs, rearrange the notes, and whatever else you can think of. Not so much that it becomes a different song entirely, but try for a fresh take on a classic song. I guarantee you'll get more success.
You made my day my friend! I don't even know what this game is but because I heard this, Im looking it up right now! Kudos to you!
Please contact me if you would like to use this in a project. We can discuss the details.