I am considering a building a new single speed and am looking for a frame/fork that meets these 'wants' mostly because I have a bunch of parts looking for a home:

1. Steel because there just is no substitute
2. Capable of handling 26" wheels and 135mm rear spacing
3. Somewhere in the 54 to 56cm range
4. Theaded steerer tube
4. Drop outs not an issue, I have an White Industries ENO that I want to use

I know Rivendell makes the Atlantis that fits this bill, is there anyone else??

Thanks
Tad