Sorry can not advise on that except to say there seem to be very few such skilled workers in these days of quartz movements. But perhaps a request on Facebook might find someone - we had our grandfather clock repaired about 10 years ago by someone going house to house so it still may be viable. But cheap it may not be.
Photo seem to show weights needing to be pulled up to keep clock running but am sure you know that, or I am missing something.