What Should I Wear?

To a Hollywood Gala that ISN'T the Oscars or similar but IS an awards ceremony at which it is possible I might be honored with 2 other individuals? I need something that isn't too trendy or spendy and is relatively easy to make (as there will be little time to accomplish this) and would have to travel well (I'm on the opposite coast)?

The starlets in evening gowns were *overdressed* last year and Shirley Jones wore a Chanel suit and was *underdressed* last year. HELP!!!!

The choices are Simplicity 0558 the middle view in black dupioni silk for the bodice and red merino wool for the skirt with some killer 4" Naughty Monkey heels,

Butterick 5032 (the light blue one on the right) or Butterick 6582 view A (the black one). What say you all?

Any advice on possible fabrics for said outfits would be extremely helpful. :-)