monorail: front compartment.

 From:  telnoi
2386.1 
I've been messing around with several methods for the past hour, but I can't figure out how to construct the shape of this compartment.



Specifically the shape of the front cone that is separated from the rest.
What I have tried so far.

1
Splitting the front end in a horizontal symmetry, creating two arched loft nurbs and tried to network these together. Issue, the new network between the top and bottom symmetry is not arched.

2
Creating three rectangular curves, lofting them and trying to fillet those to give the rounded appearance. Issue, the fillet radius is limited due to the construction of the loft.

How would you go about constructing this shape?
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