Hi there. I would suggest you definately take a break. I've seen people go away from flying for years at a time with no real disadvantage to their careers. If anything it will make you a more rounded candidate for the interview(s). In fact I've flown with guys/girls in jets who started their flying career after 30.
With all future jobs in Australia now 'pay for endorsement' the age issue is a non-event. Go for it!