My dad is trying to sell this motorhome, and some traveller came round and viewed it. They spent half an hour, and when they left the instructions to everything and brochures for the motorhome had gone missing. We searched the cupboards in the motorhome, the garage and everywhere, and we're putting it down to the person that last viewed it.
What can my dad do? It's a 1979 Ford Transit MK2 Motorhome.