If anyone's expanding the ROM by hand, you'll need to fix the header, too. Here's what I used: 4E 45 53 1A 20 00 10 00 00 00 00 00 00 00 00 00
As for the raccoon teapot, it can't be USE
d, but it's far from useless. Wikipedia has some background info
Also, I went ahead and smoothed out the overworld map. If anyone has RMagick installed, here's the script
Ended up liking this one quite a bit. Thanks KingMike, snark, all crew.