What sort of cheating do you need done? Sunday is gonna be slow at work and I could try zip through the game without bothering to gain Exp and leveling.
That's pretty time consuming, I wouldn't really like inflicting that upon someone.
But as I said, a save file with every character unlocked, all at level 1, with skill levels at 1, with no stats upped from level up bonus thiniges (being at level 1 might be a given but if you were at level 500, and cheated your level back down to 1, it might not revert that, I don't know), and with loads of exp and skillpoints to spend. By loads, it doesn't have to be enough to be level 1000 or whatever. I just mean enough so that I can level up each character and their stats by enough so that round-off error will be minimal.
The reason why is because as I said, I noticed skill point costs are NOT proportionate the the character's stat growth/base stats. It will also make figuring out enemy mnd and defense much easier.