what did he hit it with his body? Bike?
I agree yes that’s going to need a new door because of the swage line damage it’s very difficult to pull a dent out if that’s effected.
I’d make sure your friend realises that’s likely to cost him a fair bit has he got personal liability cover on his house insurance etc.
If it was me I’d go through motability just because while it’s away getting repaired I’d have a replacement car still covered by the scheme.
If it’s your friend fault you won’t pay an excess and it will just go on record as a non fault claim so won’t go against you in the very unlikely event of being refused using the scheme.