With the help from KSC we installed the cabin door hinge bolts, definitely a two person job. This job was not as easy as I thought it may have been. The AN3-20A bolts holes in the canopy were not quite correctly drilled, making it very difficult to insert the bolts. There is no room to use a drill bit to clean the holes so I had to grind the ends of the bolts to allow them to fit the holes. I then installed the " Canopy Hinge Slot Covers " to complete the doors.