There are a variety of rentals through Airbnb, Vrbo, and other companies.
Guests will receive a pass to the gondola upon checking in (either when you check into your hotel room or upon arrival). You will need to take a short ride up the mountain to get the summit. Please plan accordingly as the gondola takes ~10-15 mins
There is no official dress code. However, the wedding ceremony takes places on a grated balcony. So high heels are discouraged and may be a tripping hazard.