Your figures are off. 200 hours before the skills test, of which 100 PIC, 5 at night.
Hour building £10,000 or less depending on country and aircraft desired. PPL as little as £6500, ATPL £2500,CPL ME IR £16,000 at Bartolini. MCC + JOC- your choice. None of this comes anywhere close to your supposed £90,000.
Again, the wage for RYR and EZY are stated after line training of above £40k, unless the wikijobs figures are incorrect or I misunderstand them.
As was stated by another poster, if a company wants you to pay for a TR, you have a job flying that aircraft. Most would consider that an investment worth making.
Where are these airlines paying £1500 a month, I'll put them on my list as "most likely to hire me".