Hi, clearly you're doing your homework and youryo at the 'figuring out of this is a good idea' stage - so allow me to pay devils advocate.
1 - don't even think about any of it until you have a class one medical in your hand and a trial lesson or two under your belt.
2 - this career does favour the young and adventurous. If you don't like the idea of 'swanning off' - is this the career for you? The golden rule is you apply for every job and take the first one offered, where ever that happens to be. And if that happens to be Flybe then you'll be looking at a £10k pay cut for a while.
3 - Doing it all part time is a great idea, if you can work, study, sleep, repeat. As soon as you throw in any kind of a life and family, it all goes to rat-**** so one of those is going to suffer. You want to be a pilot - which means you'll be getting a divorce soon anyway.
4 - The current job climate is the best there has been for decades - paying for a type rating should be consigned to the dustbin of history by the time you get through.