Thats amazing stuff. I tried to scratch build a hetzer in 1/56 and it was a disaster. I boned up on the techniques, got some tools and proceeded to slice up some plasticard. To make a long story short, I just could get anything right, everything was a milimeter off, or the edges were too rough, or it wasn't perfectly straight, and there was much wailing and gnashing of teeth. Seeing your work makes me want to give it another shot. Incredible!