I?m nearing the end of the RV-12iS fuselage kit. I?m at the section regarding fuel lines. I had Van?s prebuild my tank, so it?s complete. Several of the instructions in the section regarding fuel lines and fittings require waiting for the engine kit. Would you recommend doing what I can with the fuel section right now? Or waiting until the engine arrives? And when did you order your engine? I?m slower than most builders due to work and family commitments, started May ?16. I need to finish seat backs, rudder pedals, and sheet metal work at forward fuselage and after this it?s on to the finish kit which I haven?t ordered either. Just need some recommendations on how I should proceed. Thanks