up to a year to hatch!! really? dang, i thought cham eggs took a while, this is even longer...
Perhaps you should have a look at Medauroidea extradentata, another stick bug. They're really easy to keep, lay hundreds of eggs which hatch after a few weeks and they're nice food for a chameleon.
You only got one? Are the illegal to have?
btw, my indian walking sticks are growing like weeds on kale and dandilion.
I don't know much about them, just that I'm having luck with them on this stuff.