Hacky,
Don't judge your potential at romhacking over this one.  This ROM is coded quite unconventionally, so even normal romhacking techniques don't cut it.  High bytes and low bytes are separated and some stats are coded as a 1/10th of the actual value.  Enemy HP is randomized, and Exp is continuously randomized (Gil = Exp/10).  Exp to next level is calculated, and apparently so are Level Up rewards, so it's impossible to search for value arrays with a hex editor.  I don't think it even has statically declared starting HP.  It needs FCEUX runtime debugger skills beyond my talents, and the RAM encoding is so alien (Chinese) even the FCEUX RAM viewer doesn't find what I want. 

Summary of completed findings:
Party Init Equipment & Levels* (Starts at 0x5508)
Enemy Spells (Starts at 0x2EFAC)
Armor Stats (Starts at 0x2C94A)
Armor Prices (Starts at 0x2F30F)
Item Prices (Starts at 0x71DBA)
Exp/Gil Reward Ratio (At 0x2676C)
*If you want to change Cloud's starting HP: MaxHP = 9*Level+10

I've found some more since then. 

Exp to Next Level (Starts at 0x2C7B4) (4 bytes each)

I've compiled my findings in a semi-organized spreadsheet file, so I'll upload it for your benefit. 
http://www.mediafire.com/download.php?tqnmnwqzyyz

I've tried to track down level-up bonuses, but the code got so confusing that I abandoned it.  Just lowering the exp between levels should effectively speed up growth. 
The file mentions something I call a "Level 0 Stat Baseline" at 0x72FFF.  Don't trust this yet.  When it calculates your stats based on your level it uses this number (#$05) as their level-0 values.  I found that it changes the stat values for the status screen, but apparently not in battle.  I'm guessing a similar block exists elsewhere in the ROM where the byte must be changed again. 0x22E8F look suspicious, and I think 0x567B has a similar effect on HP.  Maybe you'd like to check it out, it looks important.  I gotta get back to learning the text engine. 

As for my XLS, be aware it is prone to some human error in it (don't let my appearance fool you.  I am really human).  I mixed up the Hi and Lo bytes for HP.  I'm not sure, but the stat baseline bytes I gave could just be part the hex-to-decimal conversion, and may only give you the illusion that you have 9,999HP (kinda like alcohol). 

Don't know if I can help but if you ever get a patch out I could maybe help beta test using NesterJ on my hacked PSP

well, i'm definitely a big fan good luck!

I've locked this thread so we only have the discussion going on in one thread. Nice work, btw.