Kilt as part of Steampunk costume

[imbrius]

I'm the wrong person to answer the "respectful" question. But for something with a Steampunk theme, a pith helmet would probably work for a hat. Alternatively, you could wear a Balmoral or Glengarry, while replacing the standard badge with something more Steampunk themed.

If this were an outdoor event, I would (a) order a Fawn Balmoral and (b) make a steampunk-ish cap badge. But this event is indoors so no headwear necessary or desired.