I'd just choose to sign papers and be done with it. I'm not bothered to appear in front of 247927437429742 people. I'm more against having to wear a dress and kiss in public. I really doubt they'd let a female wear a suit in her wedding.
Who is this "they" who would be not be "letting"? It may be fairly non-standard, but I have seen pictures of weddings with brides (and Grooms) wearing
all manner of clothes! I think a suit would be perfectly fine and something which has almost certainly been done before on quite a few occasions.
I find it interesting so many people are afraid of the speech part, yet it doesn't seem to occur that you
don't have to make a speech. Remember that a wedding - even a hypothetical one - is your (and your partner's) day and
you both choose what should be there and what shouldn't. We didn't have speeches at my wedding (well, other than my sister banging a glass and saying "thank you" to us for having people back at our home since she knew how difficult it must be for us and that she really appreciated it), as I said, it was all very informal. And we certainly didn't have dancing! lol