Well...on the surface of it, looks like you could come out even, with a renter in the basement paying for the additional costs.
Some things to consider though:
While your home repair/maintenance estimate seems reasonable if you are buying a home in reasonably good condition, if you are buying a fixer-upper you will need to budget more.
Unexpected house repair bills, when they happen, can be large (always get a really good inspection before you buy a house. ) My mother's house, in the last year she owned it, cost us $25k (started with just converting a bathtub to a shower, found out a pinhole leak in the plumbing had caused a huge mold problem, and the sewer line to the street was shot and needed to be redone). Will you have the reserves to deal with an emergency?
If you have fixit skills, or are even just good at seeing beyond dirt and poor decor, you can make some real sweat equity by buying a cosmetic fixer (a house that is structurally sound but needs paint/flooring/tile work). Be honest with yourself though - if you don't have the skills or the vision, don't fool yourself.