And you must have been succesful in your previous career too to have all that money - An integrated Oxford course, an FI rating AND you were willing to pay Ryanair for a TR. I wouldn't have left that job......
That aside, those 'selections' are the most pointless things in the universe, they are meaningless, take it with a pinch of salt, it is just a money making scheme. Having been through various selections within an array of industries I can conclude that integrated FTO selections are weak, half arsed and gauge nothing but present performance in that capacity. When it comes to flying training, knowledge is everything (so work hard to learn your aircraft inside out), you aren't training on a Starfighter so it's not that hard to keep up with the aircraft (though it can be at the start of course). Go modular, get your PPL to confirm your aptitude and gain some confidence with a minimal outlay and risk to yourself - it makes perfect sense...... unless you desperately want it all NOW.