The instruction sheets for the Hiawatha are on the webpage that thbguy posted. Hopefully, they've learned from the experiences modelers had trying to follow the L1 instructions. I can't say how complete the instructions are (never having tried to build one), but clearly a couple of full pages, that you can print out to any size you want.
They also note on the instructions that plans are available in the March 1996 issue of Model Railroader.