GitHub User: tigris
You probably need an /etc/init.d wrapper for sidekiq. Whenever I want to monitor anything with monit, i write a simple wrapper for it. You can find them around pretty easily, plenty available for unicorn and other gems that require bundle exec functionality.
You mentioned that the main advantage of queue_classic over something like resque would be that you don't need a daemonized process running all the time. I'm curious what you would use to poll the queue then? Wouldn't you daemonize the rake task you had running throughout the screencast? Or would you run that or the lightweight worker script from cron?