Norwegian are offering the same sort of gig for cadets on their 737 800 , with OSM. The cost of their type rating is Approx 24,000 Euro.
I don't think they can write it off against tax, however I think they are taxed at a very low rate for the first year or so.
Second hand information from friends so am open to correction, however for a similar role (getting into the industry and 500 hours ) seems like another option.