I'm not sure of the width of the GLH fuselage but I designed a one piece servo mount plate for the soon to be released Eaglet 250 based on the measurements from the Super Sport 250 that I have. My servo mount plate fits the same servos that Doug sells and just glues in place. It has upright supports for the pushrod sleeves too. It also accommodates micro nose wheel steering that I have designed as well. I may post files up to Thingiverse as soon as I get my Eaglet 250 kit and I know for certain they fit that fuselage properly. I'm more than willing to share the .stl files. If you need adjustments made to fit a particular fuse just let me know and I can make changes. ALL I ASK IS THAT YOU DON'T TAKE MY .STL FILES AND UPLOAD SOMEWHERE AS YOUR OWN DESIGN!
Joe