Davjet
I really do feel for you. I have been forunate that I never had to pay up front for any of my 6 type ratings got bonded for 3. That's ok.
I was completely broke out of flight school and could not have afforded a type rating or another loan. I got my first job which was not great but TR paid for. A bit later I was offered a job on a better aircraft but for same pay and I would have had to pay for my TR. I turned down that job. A bit later I was hired onto the 737, TR paid for by the company. I have since been on a number of BizJets and not paid for any of those ratings.
I understand it is difficult but I think it is short-sighted to accept peanuts today and hoping that for some reason your employer would pay you a decent salary in the future when he can just hire someone else who is happy to fly for peanuts.
All I am saying is: Don't drag the conditions down for all of us including yourself. Be flexible if you have to. Maybe offer to cover half the cost of the TR when discussing this in person with the employer.
But please don't advertise that you will fly for peanuts and pay for the rating. You are not doing anyone a favour here including yourself.
Hope you see where I am coming from. It is nothing personal of course. Afterall I don't even know you. But you and your qualifications are cerainly worth a little more than what you have asked for on your initial post, don't you think?