Had agreed to buy a friend's good condition 06 plate Pathfinder Adventura 80K miles for £8400, which I thought was an ok deal. Before the transaction was done he rear-ended someone - not hard enough for airbags to go off but it's now in a Nissan dealer (full insurance job) for at least a new grille, bonnet and one wing, but no structural damage it seems.

Grateful for your houghts on how to proceed - avoid at all costs, offer less (if so how much?), independent inspection advised or what?