Montessori Homeschoolers Provision

We are looking to set up a provision for children who are home-educated. The age range would be from 5 years old to 12 years old potentially. Children would attend on part time basis for no more than three days a week. It is most likely to be run from someone's home in a large downstairs area with access to the garden. Potential candidate may be working alone or with assistance of parents who would possibly be attending training in Montessori teaching methods.