Ok mate...its been 44°c here...Im a shot bird. Here is what I did in 30 mins or less...BLOCKOUTS!. Use create polygon tool etc etc. Much easier than trying with primitives on complex curves etc. I add...subtract time after time...add edge loops that line up with separate geo...etc. I extrude edges a lot, not faces etc. I then attach and delete inside faces...you will get the picture . I ave left verts unattached etc...have a look and see if you can work it out. Im off

cheers bullet