Steve
The oil industry suppliers would be where I would look in Dubai. The moving parts of drilling rigs use grease in industrial quantities. Some of that will be suitable. The web will cross reference brands and specs for you.
As others have said molybdenum based greases are great for the front suspension, just don't use them on the splines of wire wheel hubs, but fine for almost every other Morgan trad application.
Although I use white lithium on my splines, not sure why moly should not be used on them? Certainly not recommended for wheel bearings but cannot see any disadvantage on splines?
