Just a thought... I know it is a bit off topic but, since you are a non profit animal rescuer, help the city, etc... why not get the community involved in the effort? Or at least more people than those already involved?
Donations that will help you move the rescue, volunteer labor that will help you with the repairs of the old place and the adjustments in new place.
Go to churches, community associations, put up some posters in local community gathering places, lnternet etc...
Kids for example are off school for summer and many will like an opportunity to have something to do and make a difference.