Add a windblocker to 986 not originally equipped?
 

My 2000 S has a factory windblocker, but a few of the '03-'04s I'm looking at purchasing don't have them as original equipment. Any ideas how hard it is to add a factory one, or if there are any decent aftermarket alternatives?

It's a little scary to drill holes in your rollbar and pop a couple of rivets in to install the center windscreen... but I'd do it to save a hundred bucks or more at the dealer if my car didn't have one and needed it... and they all need it.

Jay Senoff's wind blocker (ad at left) is supposed to do a great job and make the interior really quiet and breeze free, but looks aftermarket to me.