Congrats!!
And as so many others have said, do what makes you happy! DH & I tied the knot 19 months ago- exactly the way we wanted to. Planned everything ourselves and kept it hush-hush because we didn't want/need anyone else's input. We aren't traditional, neither was our wedding, but every little touch made it more "us". It was a reflection of who we are, and that's what mattered most to us.
We were married in a skybox suite in an arena just prior to puck drop at a professional hockey game with a small group of 20 guests. Dinner & hockey nachos during the game for our reception, the zamboni was our "limo". No attendants- my daughter, age 5, walked me down the aisle to a medley of Queen & Yes songs. We did have gowns, made to match each other ever so slightly. My bouquet was made of the most beautiful stainless steel roses. There was a caricature artist, mascots in costumes, cotton candy, photos on the ice. We wrote a ceremony of our own, including Star Trek references and a dozen other things no one understood but us (& found an officiant who was happy to run with it). It was also on April Fool's Day- so the donut box in the cocktail hour was full of veggies. And metallic gold dinosaurs.
There's no right or wrong way. There's your way. Do what you love. No matter what, there will be those who get it & those who don't.
Oh - if you aren't sure about doing a registry, try an alternative, like SoKind, or something like that. You can include second-hand gifts (we asked for family board games), gifts of time or skill for projects around the house (or babysitting), new stuff, gift cards, donations to charity (or honeymoon fund). We didn't plan a registry, but people asked us if we would, so we did. It worked out well.
Good luck to you!! And if course, Disney is a fantastic honeymoon....just don't tell our kiddo we went without her