Im happy you are being a man and not letting mrs lazy wife take your hard earned money away, I would do the same If i were ever in the same situation. My uncle went through a similar situation except he was making 7 figures. He says he made all paperwork showing he only made like 50-60k a year through a lawyer and transferred all assets to another close family individual. I believe he pays $1500 now plus private school fees. Anyway Im sure theres a way around all of this, talk to a lawyer whos not so "legal".
Im sorry for the situation, its truly sad for the child. I'm strongly against divorce.... I say sit down and BOTH of you work on it and make it work. May I ask a question.... did her making much less money possibly ruin the marriage?