SpaceX BFR/Interplanetary Spaceship v2017 (with booster and landing legs)

This is the Big Effing Spaceship as presented in 2017.

It come in 3 pieces: the top, bottom, and legs. Print without supports.

I apologize for the coordinate system being off; the models should be rotated to print from the bottom up, as shown in the thumbnail, except for the legs, which should be printed "upside down."

UPDATE 11/18/17:
I didn't like the proportions the first time. This is a whole new model, with a more accurate aspect ratio, smaller wings, and 3 atmo engines, all of wh