The only separate parts that I have weighed are the wings. The stock KR2 wings without paint and without fuel tanks, weighed around 40 #. You probably have integral glass tanks, so that would be hard to weigh. My aluminum fuel tanks weighed 22 # each. They are a bit "over built".
My advice to you is to fly your plane and have fun. I found that the heavier plane, while not performing like the lighter ones, are more stable, so, go fly and we will see you at the Gathering. See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2011 - KR Gathering in Mt. Vernon, Il - MVN There is a time for building and it never seems to end. Daniel R. Heath - Lexington, SC