Hello! I'd like some expert advice please particularly from International School Teachers (a couple both teaching) with dependants.

Our context: My husband and I have 6 years International Teaching experience (China and Vietnam) but moved back to Australia 3 years ago. I have been on maternity leave since living in Australia but my husband has continued teaching full time during this time at home. We now have two children 1 and 3 years old. We both desperately want to get jobs for next school year and return to international teaching in July 2017. We would ideally like to teach in South East Asia at an IB school if our methods can be found at the same school. We are both Search Associates members and want to apply to attend a fair in January 2017.
My question is- Which Search Fair do you believe would be best for an Australian teaching couple (with experience) but 2 dependents to get jobs at good schools? We were told that the Bangkok fair is not so favorable for teachers with dependents and more favourable for North American teachers without dependents? Does anyone out there believe/ know this to be true? They suggested we would be better suited to attend the London job fair? We are from Melbourne, but the Melbourne job fair attracts a pretty small cohort of schools, mostly from China, and we don't want to live/work in China.

And secondly, I'd love to hear from teachers that have recently been through the recruiting process and do have 2 dependents. Any advice for us re applying for International School contracts after a brief stint at home?!
Thanks so much!!