Can you cut a sizzle reel? Can you do it in 2 days? Sure!
I love producing and cutting Behind the Scenes material, a glimpse into the magic..if you will. I get to use both the left and right side of creative brain - It's combination of a trailer with a touch of the documentary style.
As an editor, the best note a producer ever gave me while editing a sizzle reel was "Just make it Awesome!" Sizzle reels are fun to cut, you get to throw in everything and the kitchen sink. Editing commercials don't come up as often as I'd like, but the process is similar, tell me the story in 30 seconds, make me want to buy it, whatever IT is.