Hey, i've got the byte to edit.. it's right next to Joao Franco (or whatever you name him), about 8 blocks between his name and a string of '64' (or 100 in decimal).
Try editing the first 4 bytes after the string of '64' to FF FF FF FF, and you'll end up with 16,777,215 gold which you can use to buy whatever you want
As for the calculator function, that's a great help another_guest

Thanks

k: