Have you considered instructing?
This has some advantages. At such a young age without another career/university degree you might not get the attention you may deserve from airlines.
However, you could possibly get an instructors job and this will increase your flying hours whilst paying you a modest salary to get paying your loan off, or just earning some spending money.
Once you have instructed for a few years you will have the skills and flying hours needed to join the airlines, and a much greater approeciation for the industry.
Just an idea that might be worth considering.
Bri
PS. Plan looks good on the face of it.
pps. What about other ab-initio schemes? Multiflight ab-initio scheme for a shade over 29k (see adverts on pprune), or CTC? Highland airways sponsorship? Air Atlantique sponsorship?