CTN is nowadays strictly pay-to-fly gig. 35 K€ buys you 320 rating and 500 hours, Q400 is 5000€ cheaper. If they like you, you might get 6-months contract at the end of your tour. We'll see soon what happens after first 6 months.
Formally there are no obstacles to getting employed as an EU-expat but there are no takers as far better jobs can be found through Europe so even Croatian fATPL wonders prefer to emigrate rather sooner than later.