Two GEVO's lead a Wichita, KS to Laurel, MT Boeing Airplane Train with three 737 Fuselages that can be seen near Berthoud, CO. The train is going to the Boeing Assembly Plant in Washington.
This is certainly one way to transport 737's to Boeing. Boeing 737 Fuselages are seen traveling from the Boeing plant in Wichita, KS going to the assembly plant in Washington by rail.