I don't think there is a cut and dried answer to that. It is a matter of judgement, and your auditor might take a view on it if you were to go ahead. If so, you could be subject to criticism if the auditor felt that you had not handled council assets responsibly.
You could consult initially your internal auditor, and depending on the response, you might consult your external auditor.
At first sight, one would think that looking more widely for options would be the sensible course.