Thanks everyone for the advice, they're Michelin Alpin, quite low profile as it's a Saab 900 M reg that's got a bit of body damage that would realistically be uneconomical to repair here, so needs a new home with a careful African owner
Bit worried that the car's got quite low ground clearance in general, plus it sounds right that the compound is designed for low temp; tread pattern is relatively standard, it's the split tread blocks and low temp softness that give it the grip in snow, although in fairness the Michelins were at one time the
snow tyre that was regarded as far better mileage than the others.
I'm hoping that I stick to the best routes and should make it, the more I read on these forums though the further I think I'll have to drive
I gather that Mali's the place for avoiding customs hassles.