The Saudis probably get a lot more bang for the buck buying the Russian tanks. But for aviation, I think they should go more to the French offerings, save for the Mi-35.
The Mi-35, we should buy a bunch of those. They will do the job of the V22 for a whole lot cheaper, and most likely, more effectively.
If you’d think of replacing the V-22 with an Mi-35,well you might as well go for an armed S-70 variant(which already exists).While cheaper,none of these helicopters will match the V-22 in it’s range,payload & speed in special operations.