I've got an 18" '03 Dawg Dee-lux that weighs in at 30-31 pounds (depending on the scale). The only change from stock is that I am using a (heavier) Mavic F519 rim on the rear wheel instead of the Mavic 223, and a (lighter) XT rear hub instead of the stock deore hub. Net weight gain with this change was 0, so it's basically a stock bike, weight-wise. Oh, I also replaced the crappy seat with a WTB Speed V, which is probably a bit heavier then stock.
I think they were quoting 28.8 for the Dee-lux even back then, so that's either optomistic, or for a small frame. My front hub is about to die, I think (wierd noises), so I'm thinking I'll probably replace the original Mavic 223/deore front wheel with a lighter Mavic 317/XT. That may pull it under 30 pounds.