Air scoop ducts

I'm tearing into my recently-acquired Mondial 3.2 for the first time (timing belt change) and my car appears to be missing at least one duct that's supposed to branch off of the starboard air scoop--part #61137200. Does anyone have a photo of this duct in place, and/or know how long it is so I can fabricate an inexpensive replacement?

And am I correct in concluding that there isn't supposed to be a duct coming off the lowest branch of the scoop? (I thought surely one of these was supposed to go to the alternator, but the parts book that came with the car confirms that my existing alternator duct--drawing air from underneath the car--is correct.)

Thanks,
Joe