Ask for inspection findings to distinguish defects from optional upgrades. You can then consider a repair quotation with a clear reason for each item. If an electric fence installation is being replaced or extended, agree the route, affected entrances and applicable permissions before work starts; do not leave a shared-boundary decision to the handover day.
When repairs are completed, retain the work description with the fence documents. Tell the next owner which controls and equipment belong to the installation and provide available user instructions. Never include passwords or access codes in a public listing. If a part could not be accessed or further work is outstanding, make that limitation clear rather than describing the entire perimeter as checked.