Looking for Xenforo help


We are looking for someone to upgrade Audiokarma.org from 1.5.16 to the latest version. This site was just moved to a new server. The forums are working but search is not, because ElasticSearch 2.3.5 is an old version, we attempted to make the sites work with Elasticsearch 5 which we thought might offer a certain degree of backward compatibility, but it did not work. So we would also need ElasticSearch 7 installed. There may be other items that need tweaking, once the upgrade is done, so really looking for someone well versed in Xenforo to oversee the process. Thank you for your time.