you can attach full fenders with p-clips. See the fender thread. There are several steamrollers in there, and i have done this on mine. Also, planet bike makes clip on full fenders. I also attached a rack and hauled 20 lbs 35 miles. But i don't know how much i would recommend that.
also my complete weighs about 20 - 21 lbs or about the same as my 78 Raleigh competition.