I have been working on interior bits. People seem to have problems with the nose "cone" fitting. It does seem to be a bit large but that won't be too hard to deal with. Also, issues were noted with getting the cone properly aligned with the inlet duct if the order of the instructions is followed. Since I am doing it gear up the nose gear bay is dispensed with, but in any case it seems better to fit the nose cone to the duct before installing it in the fuselage. I should have done one more step of test fitting, as it appears the inlet duct is just a bit too long leaving a small gap at the join to the fuselage. Next time I'll add that step. At this point the duct is permanently installed to one side of the fuselage, and I am fitting the big nose gear door to one side now. The cockpit is pretty much together. I can see that you could resolve the diameter problem with the nose cone by shortening the duct and the fuselage sides slightly, but that may be risky.