Knowing little to nothing about steampunk myself, I drafted lady_akatari, who has at least written some. So my answers are really hers. For Q3, she commented "any costume of any period is improved by a man with a sword". As for Q2, she dithered back and forth between the sporting wear and men's clothing (with a very brief consideration of a riding habit) and finally refused to commit herself. But the very first thing that caught her eye was Q1's watch. "You can't do anything in steampunk without a good antique watch!"