Id need to know a little more but I would suggest looking at a CIC CLG (Company Limited by Guarantee) in the first place.This is the same structure used by most Charities and is easily recognised as a not for profit, which organisations like the Arts Council prefer.
Get plaenty of advice before you make a decision, posting any questions onine is a good idea and im happy to arrange a telephone chat.
Once you've had a root through feel free to ask questions in the Forum (there is a setting up a CIC group that should be of interest) The paperwork isnt too bad, far better to make sure you have lots of good advice before you proceed.
Grants are available to small local charities, voluntary organisations, and community groups for projects that are innovative and can demonstrate that they will make a real difference to the lives of local people in the Harrogate area.
Grants are available to local not-for-profit groups and organisations for community projects in Essex, Southend and Thurrock that empower local people and enable them to create lasting change in their communities.