A few days ago, my son bumped into a car with his bike. He made a few minor dent/scratches just below the wing mirror, as shown in this picture.

I'm an honest guy, so I left a message on the windscreen for the owner to contact me and I'd pay for any repair.
He did so, and it all seemed to be reasonable and grown-up.
He's now got back to me and said he's been quoted £735 plus VAT (so £882 in total). He also wants reimbursing for having to take three half days off work (and drive 180 miles in total) in order to go to an approved dealer for the quote, the drop off and the collection.
My questions to the great and good of NSC are:
1) I don't think that I should pay for his time off work and mileage. Do you agree?
2) Is £882 a reasonable price for this? It seems a hell of a lot for a few minor scratches, and his car is only an old Kia – it's not like it's a Ferrari or something.
3) Would it be unreasonable for me to ask if his insurance would help here – if I pay the excess, and so long as he has his no claims protected?

I'm an honest guy, so I left a message on the windscreen for the owner to contact me and I'd pay for any repair.
He did so, and it all seemed to be reasonable and grown-up.
He's now got back to me and said he's been quoted £735 plus VAT (so £882 in total). He also wants reimbursing for having to take three half days off work (and drive 180 miles in total) in order to go to an approved dealer for the quote, the drop off and the collection.
My questions to the great and good of NSC are:
1) I don't think that I should pay for his time off work and mileage. Do you agree?
2) Is £882 a reasonable price for this? It seems a hell of a lot for a few minor scratches, and his car is only an old Kia – it's not like it's a Ferrari or something.
3) Would it be unreasonable for me to ask if his insurance would help here – if I pay the excess, and so long as he has his no claims protected?