A sensible question but I think you already know the answer. You have to have a back-up plan; an alternate if if you like. The training is just one of the pots you have to fund, the other is your living costs whilst training and afterwatds but the biggest one is your family’s living costs. When you have enough to “do and afford the training” each one of these pots will be fully funded. The unfortunate fact is you have to be able to travel fast and light once you have your tickets. And then your face has to fit as you will be up against many others who are desperate to earn a crust flying. And how do you tell your better half that you’ll be living in a crash-pad in Port Moresby with four other guys for six months or so and possibly earning just enough to buy beer? You’ll also find that even scenic flying is quite tough with low hours (I have done a fair bit out of Hobart) because flying has to be second nature. So being realistic you will have a spend a year or so after qualifying doing the odd bit of possibly instructing before you can start earning enough to think another your next step.
PM