Can I get a mortgage if my only income is a disability check and a small pension?

I own my home free and clear, paid off in 14 years. It's current market value is about $250k. I own three vehicles, valued at a total of about $25k. My monthly income is about $1650 from disability and a small pension. Not much in savings. Credit score above 755, maybe over 800. No debt except a tax debt balance of $7k remaining from an original $28k obligation being paid off until about December 2012. I want to rent out my home, which could bring income of about $1600. (Zillow estimates $1800), and I want to buy a bank foreclosed house for about $50,000, it's value being much higher that the asking price. I can put down about 5% to 10%, make this next house my primary residence, and pay it off in 10 years. Given that my handicap affects my ability to earn the kind of livelihood I once used to make, can I still secure a $50,000 mortgage? And if I can get a mortgage, I am thinking of buying in and moving to a state different from where I now live. That being so, should I seek a mortgage in the state where I'm buying, or should I try with my first mortgage lender here at home with whom I do have an excellent track record? Thanks for any suggestions.