We are in the process of planning this also, looking to have MH inspected for the MOT late Jan, if all good we will probably depart UK early Feb. Similar to you we envisage 1 week through France into Spain at San Sebastian and another 2 weeks to Algeciras. It will be our first time visit.
Do you have a planned date of crossing to Morrocco?
I notice you are a free member - Maybe we could contact each other via email to track progress and discuss planning.