Kenny,
My recommendation is to snag the anvil and keep looking! I don't know exactly what your after, or what your background is, but I'd be inclined to snag an anvil like that at scrap yard prices. As far as resurfacing... My understanding, if you want to repair an anvil face, is to pre-heat the anvil to about 450 degrees, then build up the face using some 7014 or similar welding rod. This takes a fair amount of work, and I don't know if that is something you are prepared to do. Also, you may find that rounded edges might have some advantages over square edges. What condition / shape is the horn in?
Disclaimer: I'm still a newbie blacksmith.