Good Luck if you chose to pay for a type rating.
One question you have to ask yourself is if another job comes up after you have done your type rating on a different type of aircraft would you be able to pay it again. i.e if you get a B737 TR and someone offers you an o/f on a kingair and said to you, you can have the job if you pay for the class rating then could you pay for the rating again?
why boeing and not airbus? they are building more airbus aircraft than boeing at the moment?
why not a q400?
If your after a jet job then there is still very little around + remember the prop aircraft pilots will be looking to upgrade.
what will do about SOP when doing your TR, which airline will you mirror, get this area wrong and it will be a waste of money.