Finally managed to build up the courage to tackle the cabin roof structure. I had been trying to get the full picture and relationship of all of the parts, including the skylight option, internal linings, the windshield fitting, the cabin skins and the finished lengths of the wing ribs which all interrelate. Very frustrating when some of the drawings conflict with others and show items that are no longer provided or that have been changed and or given a new part number and this has not been addressed in the assembly manual. Thank goodness for those other builders web sites! Anyhow, I feel like I'm back on a roll, and no doubt that I'll look back on all this and say it was easy!