Kogswell sells its porteur/raddoneur (P/R) frameset, which includes the frame, fork, and fenders (painted to match the frame), headset and seatpost for $600.
Here's how Kogswell decribes the P/R:
The best all-rounder ever.
This is not a racing bike. Because you don't have a support car. And it isn't a mountain bike. But it can do everything else brilliantly. You can commute on it. You can use it as a light or loaded tourist. It handles anything that even remotely looks like a road. And it does it all with comfort, safety, speed and fun.
We didn't design it. We copied it. It's based on a French newspaper delivery bike. Porteurs, the men and women who shuttled papers, flew through the streets of Paris on bikes like these.
The tubing is ECO double-butted chromoly steel, TIG-welded, with braze-ons for pump-pegs, 3 bottle-holders, rear rack, and of course fender mounts.
Kogswell has a bit of a cult following, so you'll find plenty of info and pics on the bike blogs and elsewhere. Here's a sampling:
The Daily Randonneur: My Kogswell P/R Initial Build
Cyclofiend: Elias Grey
Cyclofiend: Nate's bike
Cycling Spokane: Alex's Kogswell P/R
Phred's Blog: Alex's Kogswell
Bike 2 Work 2 Live: Reviewing the Kogswell P/R
Cycloculture: An interview with Kogswell's Matthew Grimm
How 'bout it?