Shelbs –
I haven’t been to ground school yet so don’t take my word for it but from my understanding, ground school is very tough and intense and i don’t think you will have time to commute back to Perth. 7 weeks can be a long time away from your kids but maybe you can work around it? Have your kids come and visit you for a weekend or something while you’re at training? I think training is held 7 days a week so even on weekends and some public holidays!
Lets wait and hear from those that know a bit more about training and see what they say =)