Depending on what you plan to do, you should probably aim to take around £40-£50 per person per day (£280-£300 per week) in Morocco.
How safe is Morocco for Westerners?
Incidents of violent crime occasionally happen. There have been incidents involving the use of knives against tourists in street attacks, thefts and burglaries in major cities and along beaches. Avoid quiet areas, particularly after dark. Don't carry large amounts of money or valuables around with you.