Patchouli leaves doesn't smell anything like Luxe Patchouli, which is the most non-patchouli smelling 'patchouli fragrance' I've yet to experience.
So from what I can tell, Stephan doesn't want patchouli, vanilla, citrus, rose, or leather. That's going to make it tough to give any recommendations. In fact, with those parameters, why stick with Montale? Probably best to try another house.
Regardless, I've sampled about 75% of the Montale line, and the Aouds are hit or miss. I happen to also think Aoud Lime smells like bug spray - or worse. For non-rose ouds, some of my favorites are Aoud Shiny, White Aoud and Silver Aoud. Cuir d'Arabie is still my fave. I still think the best Aouds are the rose ones, and they are different enough from Paestum Rose that there isn't any duplication. I wouldn't rule out the best from a line because of owning a fragrance from another house with a matching note... I'm not quite sure that's the best approach because you'd be artificially restricting yourself from experiencing a wide range of fragrances.
For non-aouds, Bois Vanille (which does not have prominent citrus, it's primarily a wood fragrances with vanilla-pod sweetening) is amazing, as is the never-discussed Chypre Vanille. For oriental styles I recommend Sweet Oriental Dream. I like vanilla and amber, but Blue Amber is so sweet it makes me queezy. Bois Vanille is a better option, imo.
Not all fragrances are listed on Montale's website, hence why someone wouldn't find Red Vetyver. Another good not-discussed Montale is Vetiver des Sables. Finally, Musk to Musk and Vanille Absolu/Extasy aint' bad, either.