A few places sell the Kona Paddy Wagon frame only (that's what you want, right, not a complete bike). It has eyelets for fenders but for a rack you'd need the seatpost thingy to make it work.
Someone was selling Redliine 925 frames on eBay real cheap as of a few days ago. I'd be all over those were it not for the compact geometry on the 925 frame.
I've looked and looked and that's all I've found. Bugs me alot.