The fact that they expect you to pay for a ticket should give a clear indication that this is a low salary position. Also of course hotel costs and medical too don't forget have to be paid as well.
Are they going to charge for uniforms and CAAS licence as well?
I well remember some delusional Pilots who joined SIA Cargo trying to convince themselves they had a deal as good as Mainline Pilots which of course was nonsense as why would SIA have set up the Cargo as a separate entity except to have a lower Pilot cost base which it indeed was.