Cool – did you work off some sort of technical drawings to get sizes etc?
Nope, I eyeballed it all the way. When using a program like wings I can just delete and mirror one side so everything I do to one side is automatically done the same to the other. And by constraining movement only in x, y and z directions I can be sure everything always in proper alignment. Thats why poly modeling is better than NURBs/spline modeling, because you just keep molding the mesh till it looks right. With splines you have to draw the curves correctly the first time and know the correct shape of each station in the object your making.