What circuit to do in Morocco in January?

Hi there, I already know Morocco a bit (8th trip), but not much in winter (early January). Reading travel journals made me want to do the following 12-day circuit (10 days on site): Marrakech (my flight is booked) - Ouzoud Waterfalls - Tessaout Valley - Skoura - Aguinane Oasis - Taroudant - Marrakech

Has anyone already done this itinerary? We’re renting an ordinary car. Is the R307 road passable in winter? Same question for access to the village of Megdaz? And finally, can we reach Aguinane Oasis from the N10 without too much trouble? Is it worth the detour? Any other suggestions for the circuit?

Thanks in advance for your replies...

The answer to your question is quite simple—it all depends on the weather. It's the mountains...