I'm suggesting that if you had done some research on this topic prior to posting this question AND if have been paying attention to the two pages of this post, then you would see that in every single person's opinion the originally quoted price tag of $20k was ridiculous, and $17K for a CFI and CFII is horribly overpriced; but you seem content to spend it in any case.
Without doing further research on alternative possiblities, and even without believing internet advice, I think (like Rickair said) that you will end up regretting this decision for a very long time to come. Therefore, in the near future when you are a minimum $17k in debt, not counting any other training that you probably paid premium price for, you will be coming on APC complaining about not being able to find a CFI job and how are you going to make those loan payments, and whoaas me this industry sucks, and so on. All the while you had good advice staring you in the face. Before you plop down that much money on a CFI - you had better be really sure about what you are doing.
Best of luck to you in any case gilz.

USMCFLYR