Not sure why you're looking for a clutch fluid reservoir for a cable operated clutch but here you go nonetheless. Perhaps you have chosen to use the clutch reservoir for the rear brake master cylinder.
The two numbers you gave (96180011A or 96180041A) are for numerous models. So you may want to expand your search beyond just the HM or HS models. But you may already know that so lets continue anyways.
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Here's the kit for sale on Ebay in the USA.
Link
I couldn't find the oil fill cap anywhere but unless you want the Ducati brand, there appears to be lots of aftermarket solutions. Just be careful with what you get. Some caps will have a magnetic insert which will fall out once the engine reaches temperature and other caps won't seal properly and can also loosen making a mess and possibly starving your engine of oil. I speak from experience. I have a couple of aftermarket caps that are no longer used because of these reasons.
Cheers and good luck with your hunt!
