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I read it right here on Salon, in the letters section, from a woman who had her photos taken for porn several years back. She did it for many different reasons which are irrelevant here. But later she regretted it. She wished she hadn't. However, those pictures are legally held by the porn provider, not by her. She can't take them back. She described getting "that look" from men sometimes, with the question "Don't I know you from somewhere?" and it made her want to curl up and die. Right there.
Think about that before you bare all for the $$. You can't ever go back. You don't own those images of yourself any more, someone else does, and he/she/they can do whatever they like with them. Forever.
Sell the house first and go to a studio apartment. Sell the dog. Mow lawns. Go see your local financial aid advisor. Get a TA position and live on Ramen noodles, but keep your self-respect.
How will you feel years down the road when one of your future students "recognizes" you?