I do presume that Your licence is still valid. What type did You fly the required hours and take the LPCs on?
Paying to fly... ok, just one thought instead of a rant. How long would it take for You to recover the 55kEur from the salary You may expect from the job You want to land after the line training? When calculating this, please consider if You also like to see some food on the table and this table to stand in a heated, lighted place to live in.
Judging from the lines You have written, if I were in Your shoes I would preferably look for jobs NOT involving the 737. Take Your time on that type as experience, but first of all get a flying job that pays the bills instead of leaving You with still another one to be paid. On whatever type that may be.