Just looking at available kits for a Nieuport 11. Special Hobby seems to be better than AModel, though both have their problems.
A decent Le Rhone 9C would be a nice addition.
I can't see any 1/32 9c kits around though.
Though there is the sprue for the 9c from the CSM kit of the N.XXI...
I have asked CSM if they would sell that sprue separately.