These would work, but they're not the highest quality enlarging lenses around. If you intend only modest enlargements, they should be ok but still not great. If you look around, you might be able to find a more modern, and coated, EL-Nikkor, Schneider Componon-S, or Rodenstock Rodagon at a reasonable price.
There's a lot of talk about how inexpensively excellent enlarging lenses can be had on the used market. That's true if you're talking 50 mm. optics for 35 mm. negatives. Longer focal length optics tend to hold more value, simply because there are fewer of them around. Still it is possible to find a good one at a decent prices of $50 to $100. There are a few on Ebay now.