This is not a new idea, nor a bad idea, people do it everyday. They take out equity in their homes to pay for many things, 2nd homes, boats, cars, college education, make repairs to their home.
As to your individual situation, you as I stated should speak with your accountant. The time value of money is an important concept. That means borrowing money today and paying it off with future money that is not worth as much due to devaluation of the dollar.
Some important questions would be stability of your job, value of your home, equity in your home, stability of your neighborhood.