Just heard back from Aerocraft - they were nice enough to let me know it would be 10 days to 2 weeks for the motor and controller to come in from overseas. Professional of them to be up-front about it and I'll definitely use them later as they are local (more or less) and have a decent selection of stuff. So for the moment I'm waiting for the motor from BP Hobbies. A little unsure about the ESC on that one because it only has a 1A BEC - they say for 4 servos you need a bigger BEC. I'll only have 2 servos but I'd like to power an Arduino off it as well (not sure if that will even work).
Lots to learn!