Yes, would love to keep it local! maybe you have any ideas on pubs/restaurant etc who might be interested??
A friend of mine recently did a pop up kitchen at Clerkenwell Kitchen which isn't open in the evenings or weekend - http://www.theclerkenwellkitchen.co.uk/ Not sure you would get much footfall and its not local but the restaurant is lovely with an open plan kitchen.
The Redmond Centre, near Manor House, have a fully fitted training kitchen. This is for rent.