It will be difficult but not impossible. Had you bothered to do a simple search of this site, all that information has been covered numerous times. Without knowing your current and expected lifestyle, it would be pretty hard to guess.
SOME PEOPLE TRY TO TURN BACK THEIR ODOMETERS. NOT ME. I WANT PEOPLE TO KNOW WHY I LOOK THIS WAY. I'VE TRAVELED A LONG WAY, AND SOME OF THE ROADS WEREN'T PAVED. ~ Will Rogers