For the vehicle inspection you will need:
Your driving licence
A bank statement addressed to your name and current home address dated within 3 months
Vehicle Registration V5 Document with your name (the seller) on it
The service history records
Valid finance settlement letter showing final settlement figure and finance company bank details (if applicable)
All keys, including spares
Any accessories related to the use of the vehicle i.e. user manual, locking wheel nut key, memory cards etc