Draft but completely clueless how to going on

Hi

I have just startet with a side(top view) that i jave extruded (NanoCopter.SLDPRT), but the extruded cut for the other sides seems not give a good result.

The body should be hollow with a 0.8mm wall thickness (most of the time). The 4 motor-mounts should be 1.5mm plate thick.

After extruding the top view, how can i go further? Any help would be greatly appreciated

thank's a lot

Andy

SolidworksSurfacing