Painting a fridge

Antique Saltbox junkie
I’m new to the community and excited to be here! In the grand scheme of renovating our antique Saltbox, it makes sense to keep our old side-by-side. Its white with a pebble finish, and is starting to rust. hoping to paint the refrigerator in my kitchen either Polo or Mediterranean (deciding between the two for a refresh of the currently hideous circa-1981 cabinets), and hoping y’all can help with some pearls of wisdom for any special prep I should do first, and any experience with this type of project. Thanks!