Several DIY stores here in the U.S. carry Rustoleum Appliance spray paint. It can be obtained in several different colors. Look for the Epoxy Specialty Paint… Additionally, if you want the finished product to really look different, see if this is available…
http://www.liquidstainlesssteel.com
Keep in mind, which ever you choose to use, be sure to do a good job of preparing the unit… fine grit sandpaper (water sand paper, the type auto finishers use, is the best) to smooth scratches and dents as well as removing any rust.
You'll need to move the unit to a nearby garage or other reasonably dust-free area, other wise wit will turn into a disaster. Use a paint throw under it and do a good job of masking off the door seal and handle (removing the handle would be best, if you're able) as well as any areas you don't want painted. Two or 3 light spray coats is far better than one overly thick one to avoid runs. Take your time and do a good job, Ok? Good luck!