Never have seen one on a 16, nor a spinnaker, for that matter.
Don't think I would want to single-hand a 16 with a Hooter or Spin however -- sounds like a lot of work. You'd be busier than a one-armed paper hanger, or a one-legged a-- kicker.
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Cost would be around $2000 for all the components, I believe. You can check with Calvert Sails as they do the entire thing. Calvert has ads on this site that pop up in the masthead every few times. Just click on the ad and it will take you to their site.
Otherwise, click on the following;
http://www.calvertsails.com